ZILOG Z86E0412PEC

PRELIMINARY PRODUCT SPECIFICATION
1
Z86E04/E08
1
CMOS Z8 OTP MICROCONTROLLERS
PRODUCT DEVICES
Part
Number
Z86E0412PEC
Z86E0412PSC1866
Z86E0412PSC1903
Z86E0412PEC1903
Z86E0412SEC
Z86E0412SSC1866
Z86E0412SSC1903
Z86E0412SEC1903
Z86E0812PEC
Z86E0812PSC1866
Z86E0812PSC1903
Z86E0812PEC1903
Z86E0812SEC
Z86E0812SSC1866
Z86E0812SSC1903
Z86E0812SEC1903
Oscillator
Operating
ROM
Type
Operating
VCC
Temperature
(KB)
Package
Crystal
Crystal
RC
RC
Crystal
Crystal
RC
RC
Crystal
Crystal
RC
RC
Crystal
Crystal
RC
RC
4.5V–5.5V
4.5V–5.5V
4.5V–5.5V
4.5V–5.5V
4.5V–5.5V
4.5V–5.5V
4.5V–5.5V
4.5V–5.5V
4.5V–5.5V
4.5V–5.5V
4.5V–5.5V
4.5V–5.5V
4.5V–5.5V
4.5V–5.5V
4.5V–5.5V
4.5V–5.5V
–40°C/105°C
0°C/70°C
0°C/70°C
–40°C/105°C
–40°C/105°C
0°C/70°C
0°C/70°C
–40°C/105°C
–40°C/105°C
0°C/70°C
0°C/70°C
–40°C/105°C
–40°C/105°C
0°C/70°C
0°C/70°C
–40°C/105°C
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
18-Pin DIP
18-Pin DIP
18-Pin DIP
18-Pin DIP
18-Pin SOIC
18-Pin SOIC
18-Pin SOIC
18-Pin SOIC
18-Pin DIP
18-Pin DIP
18-Pin DIP
18-Pin DIP
18-Pin SOIC
18-Pin SOIC
18-Pin SOIC
18-Pin SOIC
Several key product features of the extensive family of Zilog Z86E04/E08 CMOS OTP microcontrollers are presented in
the above table. This table enables the user to identify which of the E04/E08 product variants most closely match the user’s application requirements.
DS97Z8X1104
PRELIMINARY
1
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
FEATURES
■
14 Input/Output Lines
■
Two Programmable 8-Bit Counter/Timers, Each with
6-Bit Programmable Prescaler
■
Six Vectored, Prioritized Interrupts
(3 falling edge, 1 rising edge, 2 timers)
■
WDT/ Power-On Reset (POR)
■
Two Analog Comparators
■
On-Chip Oscillator that Accepts XTAL, Ceramic
Resonance, LC, RC, or External Clock
■
Program Options:
– Low Noise
– ROM Protect
– Auto Latch
– Watch-Dog Timer (WDT)
– EPROM/Test Mode Disable
■
Clock-Free WDT Reset
■
Low-Power Consumption (50 mw typical)
■
Fast Instruction Pointer (1µs @ 12 MHz)
■
RAM Bytes (125)
GENERAL DESCRIPTION
Zilog's Z86E04/E08 Microcontrollers (MCU) are One-Time
Programmable (OTP) members of Zilog’s single-chip Z8®
MCU family that allow easy software development, debug,
prototyping, and small production runs not economically
desirable with masked ROM versions.
For applications demanding powerful I/O capabilities, the
Z86E04/E08's dedicated input and output lines are
grouped into three ports, and are configurable under software control to provide timing, status signals, or parallel
I/O.
Note: All Signals with an overline, “ ”, are active Low, for
example: B/W (WORD is active Low); B/W (BYTE is active
Low, only).
Power connections follow conventional descriptions below:
Connection
Circuit
Device
Power
Ground
VCC
VDD
GND
VSS
Two on-chip counter/timers, with a large number of user
selectable modes, offload the system of administering
real-time tasks such as counting/timing and I/O data communications.
2
PRELIMINARY
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
Input
XTAL
Vcc
Machine
Timing & Inst.
Control
Port 3
Counter/
Timers (2)
ALU
Interrupt
Control
FLAG
Two Analog
Comparators
1
GND
Register
Pointer
OTP
Program
Counter
General-Purpose
Register File
Port 2
Port 0
I/O
(Bit Programmable)
I/O
Figure 1. Functional Block Diagram
DS97Z8X1104
PRELIMINARY
3
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
GENERAL DESCRIPTION (Continued)
D7–0
AD 10–0
Z8 MCU
AD 10–0
Address
MUX
D7–0
AD 10–0
Address
Counter
D7–0
3 bits
Clear Clock
P00 P01
EPROM
Data
MUX
Z8
Port 2
ROM PROT
Low Noise
PGM
Mode Logic
PGM
P30
EPM
P32
VPP
P33
OE
P31
CE
XT1
Figure 2. EPROM Programming Mode Block Diagram
4
PRELIMINARY
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
PIN DESCRIPTION
D4
D5
D6
D7
VCC
NC
CE
OE
EPM
1
18
9
10
D3
D2
D1
D0
GND
PGM
CLOCK
CLEAR
VPP
P24
P25
P26
P27
VCC
XTAL2
XTAL1
P31
P32
1
18
9
10
Figure 3. 18-Pin EPROM Mode Configuration
Figure 4. 18-Pin DIP/SOIC Mode Configuration
Table 1. 18-Pin DIP Pin Identification
Table 2. 18-Pin DIP/SOIC Pin Identification
EPROM Programming Mode
Pin #
Symbol
Function
1–4
5
D4–D7
VCC
Data 4, 5, 6, 7
Power Supply
6
7
8
9
10
NC
CE
OE
EPM
VPP
No Connection
Chip Enable
Output Enable
EPROM Prog Mode
Prog Voltage
Clear
Clock
PGM
GND
D0–D3
Clear Clock
Address
Prog Mode
Ground
Data 0,1, 2, 3
11
12
13
14
15–18
DS97Z8X1104
1
P23
P22
P21
P20
GND
P02
P01
P00
P33
Standard Mode
Direction
Pin #
Symbol
Function
In/Output
1–4
5
P24–P27
VCC
Port 2, Pins 4,5,6,7
Power Supply
In/Output
6
7
8
9
10
11–13
14
15–18
XTAL2
XTAL1
P31
P32
P33
P00–P02
GND
P20–P23
Crystal Osc. Clock
Crystal Osc. Clock
Port 3, Pin 1, AN1
Port 3, Pin 2, AN2
Port 3, Pin 3, REF
Port 0, Pins 0,1,2
Ground
Port 2, Pins 0,1,2,3
Output
Input
Input
Input
Input
In/Output
Input
Input
Input
Input
Input
Input
Input
Direction
In/Output
In/Output
PRELIMINARY
5
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
ABSOLUTE MAXIMUM RATINGS
Stresses greater than those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the
device at any condition above those indicated in the operational sections of these specifications is not implied. Exposure to absolute maximum rating conditions for an extended period may affect device reliability. Total power
dissipation should not exceed 462 mW for the package.
Power dissipation is calculated as follows:
Total Power Dissipation = VDD x [IDD–(sum of IOH)]
+ sum of [(VDD–VOH) x IOH]
+ sum of (V0L x I0L)
Parameter
Min
Max
Units
Ambient Temperature under Bias
Storage Temperature
Voltage on any Pin with Respect to VSS
–40
–65
–0.7
+105
+150
+12
C
C
V
Voltage on VDD Pin with Respect to VSS
–0.3
+7
V
Voltage on Pins 7, 8, 9, 10 with Respect to VSS
–0.6
VDD+1
V
Total Power Dissipation
Maximum Allowable Current out of VSS
1.65
300
W
mA
Maximum Allowable Current into VDD
220
mA
+600
+600
25
25
60
45
µA
µA
mA
mA
mA
mA
Maximum Allowable Current into an Input Pin
Maximum Allowable Current into an Open-Drain Pin
Maximum Allowable Output Current Sinked by Any I/O Pin
Maximum Allowable Output Current Sourced by Any I/O Pin
Total Maximum Output Current Sinked by a Port
Total Maximum Output Current Sourced by a Port
–600
–600
Note
1
2
3
4
Notes:
1. This applies to all pins except where otherwise noted. Maximum current into pin must be ± 600 µA.
2. There is no input protection diode from pin to VDD (not applicable to EPROM Mode).
3. This excludes Pin 6 and Pin 7.
4. Device pin is not at an output Low state.
6
PRELIMINARY
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
STANDARD TEST CONDITIONS
The characteristics listed below apply for standard test
conditions as noted. All voltages are referenced to
Ground. Positive current flows into the referenced pin (Figure 5).
1
From Output
Under Test
150 pF
Figure 5. Test Load Diagram
CAPACITANCE
TA = 25°C, VCC = GND = 0V, f = 1.0 MHz, unmeasured pins returned to GND.
Parameter
Input capacitance
Output capacitance
I/O capacitance
DS97Z8X1104
Min
Max
0
0
0
10 pF
20 pF
25 pF
PRELIMINARY
7
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
DC ELECTRICAL CHARACTERISTICS
Standard Temperature
TA = 0°C to +70°C
Sym
Parameter
VINMAX
Max Input Voltage
VCH
VCL
Clock Input High
Voltage
Clock Input Low
Voltage
VCC [4]
Min
Max
Typical
@ 25°C
Units Conditions
4.5V
12
V
IIn<250 µA
1
5.5V
12
V
IIn<250 µA
1
Driven by External
Clock Generator
Driven by External
Clock Generator
Driven by External
Clock Generator
Driven by External
Clock Generator
4.5V
0.8 VCC
VCC+0.3
2.8
V
5.5V
0.8 VCC
VCC+0.3
2.8
V
4.5V
VSS–0.3
0.2 VCC
1.7
V
5.5V
VSS–0.3
0.2 VCC
1.7
V
VIH
Input High Voltage
4.5V
5.5V
0.7 VCC
0.7 VCC
VCC+0.3
VCC+0.3
2.8
2.8
V
V
VIL
Input Low Voltage
4.5V
5.5V
VSS–0.3
VSS–0.3
0.2 VCC
0.2 VCC
1.5
1.5
V
V
VOH
Output High Voltage
VOL1
VOL2
Output Low Voltage
Output Low Voltage
VOFFSET Comparator Input
Offset Voltage
VLV
IIL
IOL
VICR
8
4.5V
VCC–0.4
4.8
V
IOH = –2.0 mA
5
5.5V
VCC–0.4
4.8
V
IOH = –2.0 mA
5
4.5V
VCC–0.4
4.8
V
Low Noise @ IOH = –0.5 mA
5.5V
VCC–0.4
4.8
V
Low Noise @ IOH = –0.5 mA
4.5V
0.8
0.1
V
IOL = +4.0 mA
5
5.5V
0.4
0.1
V
IOL = +4.0 mA
5
4.5V
0.4
0.1
V
Low Noise @ IOL = 1.0 mA
5.5V
0.4
0.1
V
Low Noise @ IOL = 1.0 mA
4.5V
0.8
0.8
V
IOL = +12 mA,
5
5.5V
0.8
0.8
V
IOL = +12 mA,
5
4.5V
5.5V
2.2
25.0
25.0
3.0
10.0
10.0
2.8
mV
mV
V
VCC Low Voltage
Auto Reset
Input Leakage
(Input Bias Current of
Comparator)
4.5V
–1.0
1.0
µA
VIN = 0V, VCC
5.5V
–1.0
1.0
µA
VIN = 0V, VCC
Output Leakage
4.5V
–1.0
1.0
µA
VIN = 0V, VCC
5.5V
–1.0
1.0
µA
VIN = 0V, VCC
0
VCC –1.0
V
Comparator Input
Common Mode
Voltage Range
Notes
PRELIMINARY
@ 6 MHz Max.
Int. CLK Freq.
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
Sym
Parameter
ICC
Supply Current
ICC1
ICC
Standby Current
Supply Current
(Low Noise Mode)
DS97Z8X1104
VCC [4]
TA = 0°C to +70°C Typical
Min
Max
@ 25°C
4.5V
11.0
6.8
mA
5.5V
11.0
6.8
mA
4.5V
15.0
8.2
mA
5.5V
15.0
8.2
mA
4.5V
20.0
12.0
mA
5.5V
20.0
12.0
mA
4.5V
4.0
2.5
mA
5.5V
4.0
2.5
mA
HALT Mode VIN = 0V,
VCC @ 2 MHz
5,7
4.5V
5.0
3.0
mA
HALT Mode VIN = 0V,
VCC @ 8 MHz
5,7
5.5V
5.0
3.0
mA
HALT Mode VIN = 0V,
VCC @ 8 MHz
5,7
4.5V
7.0
4.0
mA
HALT Mode VIN = 0V,
VCC @ 12 MHz
5,7
5.5V
7.0
4.0
mA
HALT Mode VIN = 0V,
VCC @ 12 MHz
5,7
4.5V
11.0
6.8
mA
5.5V
11.0
6.8
mA
4.5V
13.0
7.5
mA
5.5V
13.0
7.5
mA
4.5V
15.0
8.2
mA
5.5V
15.0
8.2
mA
All Output and I/O Pins
Floating @ 1 MHz
All Output and I/O Pins
Floating @ 1 MHz
All Output and I/O Pins
Floating @ 2 MHz
All Output and I/O Pins
Floating @ 2 MHz
All Output and I/O Pins
Floating @ 4 MHz
All Output and I/O Pins
Floating @ 4 MHz
PRELIMINARY
Units Conditions
All Output and I/O Pins
Floating @ 2 MHz
All Output and I/O Pins
Floating @ 2 MHz
All Output and I/O Pins
Floating @ 8 MHz
All Output and I/O Pins
Floating @ 8 MHz
All Output and I/O Pins
Floating @ 12 MHz
All Output and I/O Pins
Floating @ 12 MHz
HALT Mode VIN = 0V,
VCC @ 2 MHz
Notes
5,7
5,7
5,7
5,7
5,7
5,7
5,7
7
7
7
7
7
7
9
1
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
DC ELECTRICAL CHARACTERISTICS (Continued)
VCC [4]
TA = 0°C to +70°C Typical
Min
Max
@ 25°C
4.5V
4.0
2.5
mA
HALT Mode VIN = 0V,
VCC @ 1 MHz
7
5.5V
4.0
2.5
mA
HALT Mode VIN = 0V,
VCC @ 1 MHz
7
4.5V
4.5
2.8
mA
HALT Mode VIN = 0V,
VCC @ 2 MHz
7
5.5V
4.5
2.8
mA
HALT Mode VIN = 0V,
VCC @ 2 MHz
7
4.5V
5.0
3.0
mA
HALT Mode VIN = 0V,
VCC @ 4 MHz
7
5.5V
5.0
3.0
mA
HALT Mode VIN = 0V,
VCC @ 4 MHz
7
4.5V
10.0
1.0
µA
5.5V
10.0
1.0
µA
Auto Latch Low
Current
4.5V
32.0
16
µA
STOP Mode VIN = 0V, VCC
WDT is not Running
STOP Mode VIN = 0V,VCC
WDT is not Running
0V < VIN < VCC
5.5V
32.0
16
µA
0V < VIN < VCC
Auto Latch High
Current
4.5V
–16.0
–8.0
µA
0V < VIN < VCC
5.5V
–16.0
–8.0
µA
0V < VIN < VCC
Sym Parameter
ICC1
ICC2
IALL
IALH
Standby Current
(Low Noise Mode)
Standby Current
Units Conditions
Notes
7,8
7,8
Notes:
1. Port 2 and Port 0 only
2. VSS = 0V = GND
3. The device operates down to VLV of the specified frequency for VLV . The minimum operational VCC is determined on the value of
the voltage VLV at the ambient temperature. The VLV increases as the temperature decreases.
4. VCC = 4.5 to 5.5V, typical values measured at VCC = 5.0V.
The VCC voltage specification of 5.5 V guarantees 5.0 V ± 0.5V with typical values measured at VCC = 5.0V.
5. Standard Mode (not Low EMI Mode)
6. Z86E08 only
7. All outputs unloaded and all inputs are at VCC or VSS level.
8. If analog comparator is selected, then the comparator inputs must be at VCC level.
10
PRELIMINARY
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
DC ELECTRICAL CHARACTERISTICS
Extended Temperature
Sym
Parameter
VINMAX
Max Input Voltage
VCH
VCL
VIH
VIL
VOH
VOL1
VOL2
Clock Input High
Voltage
Clock Input Low
Voltage
Input High Voltage
Input Low Voltage
Output High Voltage
Output Low Voltage
Output Low Voltage
VOFFSET Comparator Input
Offset Voltage
VLV
IIL
IOL
VCC Low Voltage
Auto Reset
Input Leakage
(Input Bias Current
of Comparator)
Output Leakage
VCC [4]
TA = –40°C to
+105°C
Min
Max
Comparator Input
Common Mode
Voltage Range
DS97Z8X1104
Typical
@ 25°C
Units
Conditions
Notes
4.5V
12.0
V
IIN < 250 µA
1
5.5V
12.0
V
IIN < 250 µA
1
Driven by External
Clock Generator
Driven by External
Clock Generator
Driven by External
Clock Generator
Driven by External
Clock Generator
4.5V
0.8 VCC
VCC+0.3
2.8
V
5.5V
0.8 VCC
VCC+0.3
2.8
V
4.5V
VSS–0.3
0.2 VCC
1.7
V
5.5V
VSS–0.3
0.2 VCC
1.7
V
4.5V
0.7 VCC
VCC+0.3
2.8
V
5.5V
0.7 VCC
VCC+0.3
2.8
V
4.5V
VSS–0.3
0.2 VCC
1.5
V
5.5V
VSS–0.3
0.2 VCC
1.5
V
4.5V
VCC–0.4
4.8
V
IOH = –2.0 mA
5
5.5V
VCC–0.4
4.8
V
IOH = –2.0 mA
5
4.5V
VCC–0.4
V
Low Noise @ IOH = –0.5 mA
5.5V
VCC–0.4
V
Low Noise @ IOH = –0.5 mA
4.5V
0.4
0.1
V
IOL = +4.0 mA
5
5.5V
0.4
0.1
V
IOL = +4.0 mA
5
4.5V
0.4
0.1
V
Low Noise @ IOL = 1.0 mA
5.5V
0.4
0.1
V
Low Noise @ IOL = 1.0 mA
4.5V
1.0
0.3
V
IOL = +12 mA,
5
5.5V
1.0
0.3
V
IOL = +12 mA,
5
4.5V
5.5V
25.0
25.0
3.8
10.0
10.0
2.8
mV
mV
V
@ 6 MHz Max. Int.
CLK Freq.
3
4.5V
–1.0
1.0
µA
VIN = 0V, VCC
5.5V
–1.0
1.0
µA
VIN = 0V, VCC
4.5V
–1.0
1.0
µA
VIN = 0V, VCC
–1.0
1.0
µA
VIN = 0V, VCC
1.8
5.5V
VICR
1
0
VCC –1.5
PRELIMINARY
V
11
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
DC ELECTRICAL CHARACTERISTICS (Continued)
Sym
Parameter
ICC
Supply Current
ICC1
ICC
12
Standby Current
Supply Current
(Low Noise Mode)
VCC [4]
TA = –40°C to
+105°C
Min
Max
Typical
@ 25°C
Units
Conditions
4.5V
11.0
6.8
mA
5.5V
11.0
6.8
mA
4.5V
15.0
8.2
mA
5.5V
15.0
8.2
mA
4.5V
20.0
12.0
mA
5.5V
20.0
12.0
mA
4.5V
5.0
2.5
mA
5.5V
5.0
2.5
mA
HALT Mode VIN = 0V,
VCC @ 2 MHz
5,7
4.5V
5.0
3.0
mA
HALT Mode VIN = 0V,
VCC @ 8 MHz
5,7
5.5V
5.0
3.0
mA
HALT Mode VIN = 0V,
VCC @ 8 MHz
5,7
4.5V
7.0
4.0
mA
HALT Mode VIN = 0V,
VCC @ 12 MHz
5,7
5.5V
7.0
4.0
mA
HALT Mode VIN = 0V,
VCC @ 12 MHz
5,7
4.5V
11.0
6.8
mA
5.5V
11.0
6.8
mA
4.5V
13.0
7.5
mA
5.5V
13.0
7.5
mA
4.5V
15.0
8.2
mA
5.5V
15.0
8.2
mA
All Output and I/O Pins
Floating @ 1 MHz
All Output and I/O Pins
Floating @ 1 MHz
All Output and I/O Pins
Floating @ 2 MHz
All Output and I/O Pins
Floating @ 2 MHz
All Output and I/O Pins
Floating @ 4 MHz
All Output and I/O Pins
Floating @ 4 MHz
PRELIMINARY
All Output and I/O Pins
Floating @ 2 MHz
All Output and I/O Pins
Floating @ 2 MHz
All Output and I/O Pins
Floating @ 8 MHz
All Output and I/O Pins
Floating @ 8 MHz
All Output and I/O Pins
Floating @ 12 MHz
All Output and I/O Pins
Floating @ 12 MHz
HALT Mode VIN = 0V,
VCC @ 2 MHz
Notes
5,7
5,7
5,7
5,7
5,7
5,7
5,7
7
7
7
7
7
7
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
Sym
Parameter
ICC1
Standby Current
(Low Noise Mode)
ICC2
IALL
IALH
Standby Current
Auto Latch Low
Current
Auto Latch High
Current
VCC [4]
TA = –40°C to +105°C Typical
Min
Max
@ 25°C
4.5V
4.0
2.5
mA
HALT Mode VIN = 0V,
VCC @ 1 MHz
7
5.5V
4.0
2.5
mA
HALT Mode VIN = 0V,
VCC @ 1 MHz
7
4.5V
4.5
2.8
mA
HALT Mode VIN = 0V,
VCC @ 2 MHz
7
5.5V
4.5
2.8
mA
HALT Mode VIN = 0V,
VCC @ 2 MHz
7
4.5V
5.0
3.0
mA
HALT Mode VIN = 0V,
VCC @ 4 MHz
7
5.5V
5.0
3.0
mA
HALT Mode VIN = 0V,
VCC @ 4 MHz
7
4.5V
20
1.0
µA
5.5V
20
1.0
µA
4.5V
40
16
µA
STOP Mode VIN = 0V, VCC
WDT is not Running
STOP Mode VIN = 0V, VCC
WDT is not Running
0V < VIN < VCC
5.5V
40
16
µA
0V < VIN < VCC
4.5V
–20.0
–8.0
µA
0V < VIN < VCC
5.5V
–20.0
–8.0
µA
0V < VIN < VCC
Units Conditions
Notes
1
7,8
7,8
Notes:
1. Port 2 and Port 0 only
2. VSS = 0V = GND
3. The device operates down to VLV of the specified frequency for VLV . The minimum operational VCC is determined on the value of
the voltage VLV at the ambient temperature. The VLV increases as the temperature decreases.
4. VCC = 4.5V to 5.5V, typical values measured at VCC = 5.0V
5. Standard Mode (not Low EMI Mode)
6. Z86E08 only
7. All outputs unloaded and all inputs are at VCC or VSS level.
8. If analog comparator is selected, then the comparator inputs must be at VCC level.
DS97Z8X1104
PRELIMINARY
13
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
AC ELECTRICAL CHARACTERISTICS
3
1
Clock
2
7
2
3
7
TIN
4
5
6
IRQ N
8
9
Figure 6. AC Electrical Timing Diagram
14
PRELIMINARY
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
AC ELECTRICAL CHARACTERISTICS
Timing Table (Standard Mode for SCLK/TCLK = XTAL/2)
Standard Temperature
1
TA= 0 °C to +70 °C
15
8 MHz
No
Symbol
Parameter
1
TpC
Input Clock Period
2
TrC,TfC
Clock Input Rise
and Fall Times
3
TwC
Input Clock Width
4
TwTinL
Timer Input Low Width
5
TwTinH
Timer Input High Width
6
TpTin
Timer Input Period
7
TrTin,
TtTin
Timer Input Rise
and Fall Time
8
TwIL
Int. Request Input
Low Time
9
TwIH
Int. Request Input
High Time
10
Twdt
Watch-Dog Timer
Delay Time for Timeout
11
Tpor
Power-On Reset Time
12 MHz
VCC
Min
Max
Min
Max
Units
Notes
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
125
125
DC
DC
25
25
83
83
DC
DC
15
15
ns
ns
ns
ns
ns
ns
ns
ns
100
100
ns
ns
ns
ns
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1,2
1,2
1,2
1,2
1
1
1
1
62
62
100
70
5TpC
5TpC
8TpC
8TpC
100
100
70
70
5TpC
5TpC
12
12
20
20
80
80
41
41
100
70
5TpC
5TpC
8TpC
8TpC
70
70
5TpC
5TpC
12
12
20
20
80
80
ms
ms
ms
ms
Notes:
1. Timing Reference uses 0.7 VCC for a logic 1 and 0.2 VCC for a logic 0.
2. Interrupt request through Port 3 (P33–P31).
DS97Z8X1104
PRELIMINARY
15
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
AC ELECTRICAL CHARACTERISTICS
Timing Table (Standard Mode for SCLK/TCLK = XTAL/2)
Extended Temperature
TA= –40 °C to +105 °C
8 MHz
12 MHz
No
Symbol
Parameter
VCC
Min
Max
Min
Max
Units
Notes
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
125
125
DC
DC
25
25
62
62
83
83
DC
DC
15
15
41
41
ns
ns
ns
ns
ns
ns
ns
ns
100
100
ns
ns
ns
ns
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1,2
1,2
1,2
1,2
1
1
1
1
1
TpC
Input Clock Period
2
TrC,TfC
Clock Input Rise
and Fall Times
3
TwC
Input Clock Width
4
TwTinL
Timer Input Low Width
5
TwTinH
Timer Input High Width
6
TpTin
Timer Input Period
7
TrTin,
TtTin
Timer Input Rise
and Fall Time
8
TwIL
Int. Request Input
Low Time
9
TwIH
Int. Request Input
High Time
10
Twdt
Watch-Dog Timer
Delay Time for Timeout
11
Tpor
Power-On Reset Time
70
70
5TpC
5TpC
8TpC
8TpC
70
70
5TpC
5TpC
8TpC
8TpC
100
100
70
70
5TpC
5TpC
10
10
12
12
100
100
70
70
5TpC
5TpC
10
10
12
12
100
100
ms
ms
ms
ms
Notes:
1. Timing Reference uses 0.7 VCC for a logic 1 and 0.2 VCC for a logic 0.
2. Interrupt request made through Port 3 (P33–P31).
16
PRELIMINARY
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
AC ELECTRICAL CHARACTERISTICS
Low Noise Mode, Standard Temperature
No
Symbol
Parameter
VCC
1
TPC
Input Clock Period
2
TrC
TfC
Clock Input Rise
and Fall Times
3
TwC
Input Clock Width
4.
TwTinL
Timer Input Low Width
5
TwTinH
Timer Input High Width
6
TpTin
Timer Input Period
7
TrTin,
TtTin
Timer Input Rise
and Fall Time
8
TwIL
Low Time
Int. Request Input
9
TwIH
High Time
Int. Request Input
10
Twdt
Watch-Dog Timer
Delay Time for Timeout
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
TA= 0 °C to +70 °C
1 MHz
4 MHz
Min
Max
Min
Max
1000
1000
DC
DC
25
25
500
500
70
70
2.5TpC
2.5TpC
4TpC
4TpC
250
250
70
70
2.5TpC
2.5TpC
12
12
Units
Notes
DC
DC
25
25
ns
ns
ns
ns
ns
ns
ns
ns
100
100
ns
ns
ns
ns
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1,2
1,2
1,2
1,2
1
1
125
125
70
70
2.5TpC
2.5TpC
4TpC
4TpC
100
100
70
70
2.5TpC
2.5TpC
12
12
1
ms
ms
Notes:
1. Timing Reference uses 0.7 VCC for a logic 1 and 0.2 VCC for a logic 0.
2. Interrupt request through Port 3 (P33–P31).
DS97Z8X1104
PRELIMINARY
17
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
AC ELECTRICAL CHARACTERISTICS (Continued)
Low Noise Mode, Extended Temperature
No
Symbol
Parameter
VCC
1
TPC
Input Clock Period
2
TrC
TfC
Clock Input Rise
and Fall Times
3
TwC
Input Clock Width
4.
TwTinL
Timer Input Low Width
5
TwTinH
Timer Input High Width
6
TpTin
Timer Input Period
7
TrTin,
TtTin
Timer Input Rise
and Fall Time
8
TwIL
Int. Request Input
Low Time
9
TwIH
Int. Request Input
High Time
10
Twdt
Watch-Dog Timer
Delay Time for Timeout
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
4.5V
5.5V
TA= –40 °C to +105 °C
1 MHz
4 MHz
Min
Max
Min
Max
1000
1000
DC
DC
25
25
500
500
70
70
2.5TpC
2.5TpC
4TpC
4TpC
100
100
70
70
2.5TpC
2.5TpC
10
10
250
250
Units
Notes
DC
DC
25
25
ns
ns
ns
ns
ns
ns
ns
ns
100
100
ns
ns
ns
ns
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1,2
1,2
1,2
1,2
1
1
125
125
70
70
2.5TpC
2.5TpC
4TpC
4TpC
70
70
2.5TpC
2.5TpC
10
10
ms
ms
Notes:
1. Timing Reference uses 0.7 VCC for a logic 1 and 0.2 VCC for a logic 0.
2. Interrupt request through Port 3 (P33–P31).
18
PRELIMINARY
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
LOW NOISE VERSION
Low EMI Emission
■
Output drivers have resistances of 500 Ohms (typical).
The Z86E04/E08 can be programmed to operate in a Low
EMI Emission Mode by means of a mask ROM bit option.
Use of this feature results in:
■
Oscillator divide-by-two circuitry eliminated.
■
All pre-driver slew rates reduced to 10 ns typical.
■
Internal SCLK/TCLK operation limited to a maximum of
4 MHz–250 ns cycle time.
The Low EMI Mode is mask-programmable to be selected
by the customer at the time the ROM code is submitted.
PIN FUNCTIONS
OTP Programming Mode
D7–D0 Data Bus. Data can be read from, or written to, the
EPROM through this data bus.
VCC Power Supply. It is typically 5V during EPROM Read
Mode and 6.4V during the other modes (Program, Program Verify, and so on).
CE Chip Enable (active Low). This pin is active during
EPROM Read Mode, Program Mode, and Program Verify
Mode.
OE Output Enable (active Low). This pin drives the Data
Bus direction. When this pin is Low, the Data Bus is output.
When High, the Data Bus is input.
EPM EPROM Program Mode. This pin controls the different EPROM Program Modes by applying different
voltages.
Clock Address Clock. This pin is a clock input. The internal
address counter increases by one with one clock cycle.
PGM Program Mode (active Low). A Low level at this pin
programs the data to the EPROM through the Data Bus.
Application Precaution
The production test-mode environment may be enabled
accidentally during normal operation if excessive noise
surges above VCC occur on the XTAL1 pin.
In addition, processor operation of Z8 OTP devices may be
affected by excessive noise surges on the VPP, CE, EPM,
OE pins while the microcontroller is in Standard Mode.
Recommendations for dampening voltage surges in both
test and OTP Mode include the following:
■
Using a clamping diode to VCC.
VPP Program Voltage. This pin supplies the program voltage.
■
Adding a capacitor to the affected pin.
Clear Clear (active High). This pin resets the internal address counter at the High Level.
Note: Programming the EPROM/Test Mode Disable
option will prevent accidental entry into EPROM Mode or
Test Mode.
DS97Z8X1104
PRELIMINARY
19
1
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
PIN FUNCTIONS (Continued)
XTAL1, XTAL2 Crystal In, Crystal Out (time-based input
and output, respectively). These pins connect a parallelresonant crystal, LC, or an external single-phase clock
(8 MHz or 12 MHz max) to the on-chip clock oscillator and
buffer.
Port 0, P02–P00. Port 0 is a 3-bit bidirectional, Schmitttriggered CMOS-compatible I/O port. These three I/O lines
can be globally configured under software control to be inputs or outputs (Figure 7).
Auto Latch. The Auto Latch puts valid CMOS levels on all
CMOS inputs (except P33, P32, P31) that are not externally driven. A valid CMOS level, rather than a floating node,
reduces excessive supply current flow in the input buffer.
On Power-up and Reset, the Auto Latch will set the ports
to an undetermined state of 0 or 1. Default condition is
Auto Latches enabled.
Port 0 (I/O)
Z8
OE
PAD
Out
1.5
2.3 Hysteresis VCC @ 5.0V
In
Auto Latch Option
R
500 kΩ
Figure 7. Port 0 Configuration
20
PRELIMINARY
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
Port 2, P27–P20. Port 2 is an 8-bit, bit programmable, bidirectional, Schmitt-triggered CMOS-compatible I/O port.
These eight I/O lines can be configured under software
control to be inputs or outputs, independently. Bits programmed as outputs can be globally programmed as either push-pull or open-drain (Figure 8).
Z8
Port 2 (I/O)
Open-Drain
/OE
PAD
Out
1.5
2.3 Hysteresis
VCC @ 5.0V
In
Auto Latch Option
R
500 kΩ
Figure 8. Port 2 Configuration
DS97Z8X1104
PRELIMINARY
21
1
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
PIN FUNCTIONS (Continued)
Port 3, P33–P31. Port 3 is a 3-bit, CMOS-compatible port
with three fixed input (P33–P31) lines. These three input
lines can be configured under software control as digital
Schmitt-trigger inputs or analog inputs.
These three input lines are also used as the interrupt
sources IRQ0–IRQ3, and as the timer input signal TIN (Figure 9).
Z86E04
and
Z8
Z86E08
R247 = P3M
Port 3
0 = Digital
1 = Analog
D1
TIN
DIG.
P31 Data Latch
PAD
P31 (AN1)
IRQ2
+
AN.
IRQ3
P32 Data Latch
PAD
P32 (AN2)
IRQ0
+
PAD
P33 (REF)
P33 Data Latch
IRQ1
Vcc
IRQ 0,1,2 = Falling Edge Detection
IRQ3
= Rising Edge Detection
Figure 9. Port 3 Configuration
22
PRELIMINARY
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
Comparator Inputs. Two analog comparators are added
to input of Port 3, P31, and P32, for interface flexibility. The
comparators reference voltage P33 (REF) is common to
both comparators.
Typical applications for the on-board comparators; Zero
crossing detection, A/D conversion, voltage scaling, and
threshold detection. In Analog Mode, P33 input functions
serve as a reference voltage to the comparators.
Mode. The common voltage range is 0–4 V when the VCC
is 5.0V; the power supply and common mode rejection ratios are 90 dB and 60 dB, respectively.
Interrupts are generated on either edge of Comparator 2's
output, or on the falling edge of Comparator 1's output.
The comparator output is used for interrupt generation,
Port 3 data inputs, or TIN through P31. Alternatively, the
comparators can be disabled, freeing the reference input
(P33) for use as IRQ1 and/or P33 input.
The dual comparator (common inverting terminal) features
a single power supply which discontinues power in STOP
FUNCTIONAL DESCRIPTION
The following special functions have been incorporated
into the Z8 devices to enhance the standard Z8 core architecture to provide the user with increased design flexibility.
RESET. This function is accomplished by means of a Power-On Reset or a Watch-Dog Timer Reset. Upon powerup, the Power-On Reset circuit waits for TPOR ms, plus 18
clock cycles, then starts program execution at address
000C (Hex) (Figure 10). The Z8 control registers' reset value is shown in Table 3.
INT OSC
XTAL OSC
Delay Line
TPOR msec
18 CLK
Reset Filiter
POR
(Cold Start)
Chip Reset
P27
(Stop Mode)
Figure 10. Internal Reset Configuration
Power-On Reset (POR). A timer circuit clocked by a dedicated on-board RC oscillator is used for a POR timer function. The POR time allows VCC and the oscillator circuit to
stabilize before instruction execution begins. The POR
timer circuit is a one-shot timer triggered by one of the four
following conditions:
■
Power-bad to power-good status
■
Stop-Mode Recovery
■
WDT time-out
■
WDH time-out
DS97Z8X1104
Watch-Dog Timer Reset. The WDT is a retriggerable
one-shot timer that resets the Z8 if it reaches its terminal
count. The WDT is initially enabled by executing the WDT
instruction and is retriggered on subsequent execution of
the WDT instruction. The timer circuit is driven by an onboard RC oscillator.
PRELIMINARY
23
1
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
FUNCTIONAL DESCRIPTION (Continued)
Table 3. Control Registers
Addr.
Reg.
D7
D6
Reset Condition
D5
D4
D3
D2
FF
FD
FC
FB
FA
SPL
RP
FLAGS
IMR
IRQ
0
0
U
0
U
0
0
U
U
U
0
0
U
U
0
0
0
U
U
0
0
0
U
U
0
0
0
U
U
0
0
0
U
U
0
0
0
U
U
0
F9
F8*
F7*
F6*
F5
F4
F3
F2
F1
IPR
P01M
P3M
P2M
PRE0
T0
PRE1
T1
TMR
U
U
U
1
U
U
U
U
0
U
U
U
1
U
U
U
U
0
U
U
U
1
U
U
U
U
0
U
0
U
1
U
U
U
U
0
U
U
U
1
U
U
U
U
0
U
U
U
1
U
U
U
U
0
U
0
0
1
U
U
0
U
0
U
1
0
1
0
U
0
U
0
D1
D0
Comments
IRQ3 is used for positive edge
detection
Inputs after reset
Note: *Registers are not reset after a STOP-Mode Recovery using P27 pin. A subsequent reset will cause these control registers to
be reconfigured as shown in Table 4 and the user must avoid bus contention on the port pins or it may affect device reliability.
24
PRELIMINARY
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
Program Memory. The Z86E04/E08 addresses up to
1K/2KB of Internal Program Memory (Figure 11). The first
12 bytes of program memory are reserved for the interrupt
vectors. These locations contain six 16-bit vectors that correspond to the six available interrupts. Bytes 0–1024/2048
are on-chip one-time programmable ROM.
Identifiers
3FH/7FFH
3FFH/7FFH
1023/2047
Location of
First Byte of
Instruction
Executed
After RESET 12
Interrupt
Vector
(Lower Byte)
Interrupt
Vector
(Upper Byte)
On-Chip
ROM
0CH
Register File. The Register File consists of three I/O port
registers, 124 general-purpose registers, and 14 control
and status registers R0–R3, R4–R127 and R241–R255,
respectively (Figure 12). General-purpose registers occupy the 04H to 7FH address space. I/O ports are mapped
as per the existing CMOS Z8.
Location
255 (FFH)
Identifiers
Stack Pointer (Bits 7-0)
SPL
254 (FE)
General-Purpose Register
GPR
253 (FD)
Register Pointer
252 (FC)
Program Control Flags
FLAGS
251 (FB)
Interrupt Mask Register
IMR
250 (FA)
Interrupt Request Register
IRQ
249 (F9)
Interrupt Priority Register
IPR
248 (F8)
Ports 0-1 Mode
P01M
247 (F7)
Port 3 Mode
P3M
246 (F6)
Port 2 Mode
P2M
PRE0
11
IRQ5
0BH
10
IRQ5
0AH
9
IRQ4
09H
8
IRQ4
08H
7
IRQ3
07H
6
IRQ3
06H
5
IRQ2
05H
4
IRQ2
04H
245 (F5)
T0 Prescaler
3
IRQ1
03H
244 (F4)
Timer/Counter 0
2
IRQ1
02H
243 (F3)
T1 Prescaler
1
IRQ0
01H
242 (F2)
Timer/Counter 1
0
IRQ0
00H
241 (F1H)
Timer Mode
Figure 11. Program Memory Map
RP
T0
PRE1
T1
TMR
Not Implemented
128
127 (7FH)
General-Purpose
Registers
4
3
Port 3
P3
2
Port 2
P2
1
Reserved
P1
Port 0
P0
0 (00H)
Figure 12. Register File
DS97Z8X1104
PRELIMINARY
25
1
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
FUNCTIONAL DESCRIPTION (Continued)
The Z8 instructions can access registers directly or indirectly through an 8-bit address field. This allows short 4-bit
register addressing using the Register Pointer.
Stack Pointer. The Z8 has an 8-bit Stack Pointer (R255)
used for the internal stack that resides within the 124 general-purpose registers.
In the 4-bit mode, the register file is divided into eight working register groups, each occupying 16 continuous locations. The Register Pointer (Figure 13) addresses the
starting location of the active working-register group.
General-Purpose Registers (GPR). These registers are
undefined after the device is powered up. The registers
keep their last value after any reset, as long as the reset
occurs in the VCC voltage-specified operating range. Note:
Register R254 has been designated as a general-purpose
register and is set to 00 Hex after any reset or Stop-Mode
Recovery.
r7 r6
r5 r4
r3 r2
r1 r0
R253
(Register Pointer)
The upper nibble of the register file address
provided by the register pointer specifies
the active working-register group.
FF
Register Group F
R15 to R0
F0
7F
70
6F
60
5F
50
4F
40
3F
30
2F
Specified Working
Register Group
The lower nibble
of the register
file address
provided by the
instruction points
to the specified
register.
20
1F
10
0F
Register Group 1
R15 to R0
Register Group 0
R15 to R4*
I/O Ports
00
*Expanded Register Group (0) is selected in this figure
by handling bits D3 to D0 as "0" in Register R253(RP).
R3 to R0
Counter/Timer. There are two 8-bit programmable
counter/timers (T0 and T1), each driven by its own 6-bit
programmable prescaler. The T1 prescaler is driven by internal or external clock sources; however, the T0 can be
driven by the internal clock source only (Figure 14).
The 6-bit prescalers divide the input frequency of the clock
source by any integer number from 1 to 64. Each prescaler
drives its counter, which decrements the value (1 to 256)
that has been loaded into the counter. When both counter
and prescaler reach the end of count, a timer interrupt request IRQ4 (T0) or IRQ5 (T1) is generated.
The counter can be programmed to start, stop, restart to
continue, or restart from the initial value. The counters are
also programmed to stop upon reaching zero (Single-Pass
Mode) or to automatically reload the initial value and continue counting (Modulo-N Continuous Mode).
The counters, but not the prescalers, are read at any time
without disturbing their value or count mode. The clock
source for T1 is user-definable and is either the internal microprocessor clock divided by four, or an external signal input through Port 3. The Timer Mode register configures the
external timer input (P31) as an external clock, a trigger input that is retriggerable or non-retriggerable, or used as a
gate input for the internal clock.
Figure 13. Register Pointer
26
PRELIMINARY
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
Internal Data Bus
Write
OSC
÷2
Write
1
Read
PRE0
Initial Value
Register
T0
Initial Value
Register
T0
Current Value
Register
*
÷4
6-Bit
Down
Counter
8-bit
Down
Counter
6-Bit
Down
Counter
8-Bit
Down
Counter
PRE1
Initial Value
Register
T1
Initial Value
Register
IRQ4
Internal Clock
External Clock
Clock
Logic
÷4
Internal Clock
Gated Clock
Triggered Clock
TIN P31
Write
Write
IRQ5
T1
Current Value
Register
Read
Internal Data Bus
* Note: By passed, if Low EMI Mode is selected.
Figure 14. Counter/Timers Block Diagram
DS97Z8X1104
PRELIMINARY
27
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
FUNCTIONAL DESCRIPTION (Continued)
Interrupts. The Z8 has six interrupts from six different
sources. These interrupts are maskable and prioritized
(Figure 15). The sources are divided as follows: the falling
edge of P31 (AN1), P32 (AN2), P33 (REF), the rising edge
of P32 (AN2), and two counter/timers. The Interrupt Mask
Register globally or individually enables or disables the six
interrupt requests (Table 4).
When more than one interrupt is pending, priorities are resolved by a programmable priority encoder that is controlled by the Interrupt Priority register. All Z8 interrupts are
vectored through locations in program memory. When an
Interrupt machine cycle is activated, an Interrupt Request
is granted. This disables all subsequent interrupts, saves
the Program Counter and Status Flags, and then branches
to the program memory vector location reserved for that interrupt. This memory location and the next byte contain the
16-bit starting address of the interrupt service routine for
that particular interrupt request.
To accommodate polled interrupt systems, interrupt inputs
are masked and the interrupt request register is polled to
determine which of the interrupt requests needs service.
Note: User must select any Z86E08 mode in Zilog's C12
ICEBOX™ emulator. The rising edge interrupt is not supported on the CCP emulator (a hardware/software
workaround must be employed).
Table 4. Interrupt Types, Sources, and Vectors
Name
IRQ0
IRQ1
IRQ2
IRQ3
IRQ4
IRQ5
Source
AN2(P32)
REF(P33)
AN1(P31)
AN2(P32)
T0
T1
Vector
Location
0,1
2,3
4,5
6,7
8,9
10,11
Comments
External (F)Edge
External (F)Edge
External (F)Edge
External (R)Edge
Internal
Internal
Notes:
F = Falling edge triggered
R = Rising edge triggered
IRQ0 - IRQ5
IRQ
IMR
Global
Interrupt
Enable
Interrupt
Request
6
IPR
PRIORITY
LOGIC
Vector Select
Figure 15. Interrupt Block Diagram
28
PRELIMINARY
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
Clock. The Z8 on-chip oscillator has a high-gain, parallelresonant amplifier for connection to a crystal, LC, RC, ceramic resonator, or any suitable external clock source
(XTAL1 = INPUT, XTAL2 = OUTPUT). The crystal should
be AT cut, up to 12 MHz max., with a series resistance
(RS) of less than or equal to 100 Ohms.
XTAL1
The crystal should be connected across XTAL1 and
XTAL2 using the vendors crystal recommended capacitors
from each pin directly to device ground pin 14 (Figure 16).
Note that the crystal capacitor loads should be connected
to VSS, Pin 14 to reduce Ground noise injection.
XTAL1
XTAL1
C1
C1
*
*
C1
*
L
XTAL2
C2
*
*
Ceramic Resonator or
Crystal
C1, C2 = 47 pF TYP *
F = 8 MHz
LC
R
XTAL2
XTAL2
C2
XTAL1
External Clock
XTAL2
RC
@ 5V Vcc (TYP)
C1 = 100 pF
R = 2K
F = 6 MHz
* Typical value including pin parasitics
Figure 16. Oscillator Configuration
DS97Z8X1104
PRELIMINARY
29
1
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
FUNCTIONAL DESCRIPTION (Continued)
Table 5. Typical Frequency vs. RC Values
VCC = 5.0V @ 25°C
Load Capacitor
33 pFd
Resistor (R)
1.0M
560K
220K
100K
56K
20K
10K
5K
2K
1K
A(Hz)
33K
56K
144K
315K
552K
1.4M
2.6M
4.4M
8M
12M
56 pFd
B(Hz)
31K
52K
130K
270K
480K
1M
2M
3M
5M
7M
A(Hz)
20K
34K
84K
182K
330K
884K
1.6M
2.8M
6M
8.8M
100 pFd
B(Hz)
20K
32K
78K
164K
300K
740K
1.3M
2M
4M
6M
A(Hz)
12K
20K
48K
100K
185K
500K
980K
1.7K
3.8K
6.3K
B(Hz)
11K
19K
45K
95K
170K
450K
820K
1.3M
2.7M
4.2M
0.00 1µFd
A(Hz)
1.4K
2.5K
6K
12K
23K
65K
130K
245K
600K
1.0M
B(Hz)
1.4K
2.4K
6K
12K
22K
61K
123K
225K
536K
950K
Notes:
A = STD Mode Frequency.
B = Low EMI Mode Frequency.
Table 6. Typical Frequency vs. RC Values
VCC = 3.3V @ 25°C
Load Capacitor
Resistor (R)
1.0M
560K
220K
100K
56K
20K
10K
5K
2K
1K
33 pFd
A(Hz)
18K
30K
70K
150K
268K
690M
1.2M
2M
4.6M
7M
B(Hz)
18K
30K
70K
148K
250K
600K
1M
1.7M
3M
4.6M
56 pFd
A(Hz)
12K
20K
47K
97K
176K
463K
860K
1.5M
3.3M
5M
B(Hz)
12K
20K
47K
96K
170K
416K
730K
1.2M
2.4M
3.6M
100 pFd
A(Hz)
7.4K
12K
30K
60K
100K
286K
540K
950K
2.2M
3.6K
B(Hz)
7.7K
12K
30K
60K
100K
266K
480K
820K
1.6M
2.6M
0.00 1µFd
A(Hz)
1K
1.6K
4K
8K
15K
40K
80K
151K
360K
660K
B(Hz)
1K
1.6K
4K
8K
15K
40K
76K
138K
316K
565K
Notes:
A = STD Mode Frequency.
B = Low EMI Mode Frequency.
30
PRELIMINARY
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
HALT Mode. This instruction turns off the internal CPU
clock but not the crystal oscillation. The counter/timers and
external interrupts IRQ0, IRQ1, IRQ2 and IRQ3 remain active. The device is recovered by interrupts, either externally or internally generated. An interrupt request must be executed (enabled) to exit HALT Mode. After the interrupt
service routine, the program continues from the instruction
after the HALT.
Watch-Dog Timer (WDT). The Watch-Dog Timer is enabled by instruction WDT. When the WDT is enabled, it
cannot be stopped by the instruction. With the WDT instruction, the WDT is refreshed when it is enabled within
every 1 Twdt period; otherwise, the controller resets itself,
The WDT instruction affects the flags accordingly; Z=1,
S=0, V=0.
WDT = 5F (Hex)
Note: On the C12 ICEBOX, the IRQ3 does not wake the
device out of HALT Mode.
STOP Mode. This instruction turns off the internal clock
and external crystal oscillation and reduces the standby
current to 10 µA. The STOP Mode is released by a RESET
through a Stop-Mode Recovery (pin P27). A Low input
condition on P27 releases the STOP Mode. Program execution begins at location 000C(Hex). However, when P27
is used to release the STOP Mode, the I/O port Mode registers are not reconfigured to their default power-on conditions. This prevents any I/O, configured as output when the
STOP instruction was executed, from glitching to an unknown state. To use the P27 release approach with STOP
Mode, use the following instruction:
LD
NOP
STOP
Opcode WDT (5FH). The first time Opcode 5FH is executed, the WDT is enabled and subsequent execution clears
the WDT counter. This must be done at least every TWDT;
otherwise, the WDT times out and generates a reset. The
generated reset is the same as a power-on reset of TPOR,
plus 18 XTAL clock cycles. The software enabled WDT
does not run in STOP Mode.
Opcode WDH (4FH). When this instruction is executed it
enables the WDT during HALT. If not, the WDT stops
when entering HALT. This instruction does not clear the
counters, it just makes it possible to have the WDT running
during HALT Mode. A WDH instruction executed without
executing WDT (5FH) has no effect.
Permanent WDT. Selecting the hardware enabled Permanent WDT option, will automatically enable the WDT upon
exiting reset. The permanent WDT will always run in HALT
Mode and STOP Mode, and it cannot be disabled.
P2M, #1XXX XXXXB
X = Dependent on user's application.
Note: A low level detected on P27 pin will take the device
out of STOP Mode even if configured as an output.
Auto Reset Voltage (VLV). The Z8 has an auto-reset builtin. The auto-reset circuit resets the Z8 when it detects the
VCC below VLV.
In order to enter STOP or HALT Mode, it is necessary to
first flush the instruction pipeline to avoid suspending execution in mid-instruction. To do this, the user executes a
NOP (opcode=FFH) immediately before the appropriate
SLEEP instruction, such as:
Figure 17 shows the Auto Reset Voltage versus temperature. If the VCC drops below the VCC operating voltage
range, the Z8 will function down to the VLV unless the internal clock frequency is higher than the specified maximum
VLV frequency.
FF
6F
FF
7F
NOP
STOP
or
NOP
HALT
DS97Z8X1104
; clear the pipeline
; enter STOP Mode
; clear the pipeline
; enter HALT Mode
PRELIMINARY
31
1
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
FUNCTIONAL DESCRIPTION (Continued)
Vcc
(Volts)
2.9
2.8
2.7
2.6
2.5
2.4
Temp
2.3
–40°C –20°C
0°C
20°C
40°C
60°C
80°C
100°C
Figure 17. Typical Auto Reset Voltage
(VLV) vs. Temperature
32
PRELIMINARY
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
Low EMI Emission
The Z8 can be programmed to operate in a low EMI Emission (Low Noise) Mode by means of an EPROM programmable bit option. Use of this feature results in:
■
Less than 1 mA consumed during HALT Mode.
■
All drivers slew rates reduced to 10 ns (typical).
■
Internal SCLK/TCLK = XTAL operation limited to a
maximum of 4 MHz–250 ns cycle time.
■
Output drivers have resistances of 500 ohms (typical).
■
Oscillator divide-by-two circuitry eliminated.
ROM Protect. ROM Protect fully protects the Z8 ROM
code from being read externally. When ROM Protect is selected, the instructions LDC and LDCI are supported
(Z86E04/E08 and Z86C04/C08 do not support the instructions of LDE and LDEI). When the device is programmed
for ROM Protect, the Low Noise feature will not automatically be enabled.
Please note that when using the device in a noisy environment, it is suggested that the voltages on the EPM and CE
pins be clamped to VCC through a diode to VCC to prevent
accidentally entering the OTP Mode. The VPP requires
both a diode and a 100 pF capacitor.
Auto Latch Disable. Auto Latch Disable option bit when
programmed will globally disable all Auto Latches.
In addition to VDD and GND (VSS), the Z8 changes all its pin
functions in the EPROM Mode. XTAL2 has no function,
XTAL1 functions as CE, P31 functions as OE, P32 functions as EPM, P33 functions as VPP, and P02 functions as
PGM.
WDT Enable. The WDT Enable option bit, when programmed, will have the hardware enabled Permanent
WDT enabled after exiting reset and can not be stopped in
Halt or Stop Mode.
EPROM/Test Mode Disable. The EPROM/Test Mode
Disable option bit, when programmed, will disable the
EPROM Mode and the Factory Test Mode. Reading, verifying, and programming the Z8 will be disabled. To fully
verify that this mode is disabled, the device must be power
cycled.
User Modes. Table 7 shows the programming voltage of
each mode.
Table 7. OTP Programming Table
Programming Modes
VPP
EPM
CE
OE
PGM
ADDR
DATA
VCC*
EPROM READ
NU
VH
VIL
VIL
VIH
ADDR
Out
5.0V
PROGRAM
VH
VIH
VIL
VIH
VIL
ADDR
In
6.4V
PROGRAM VERIFY
VH
VIH
VIL
VIL
VIH
ADDR
Out
6.4V
EPROM PROTECT
VH
VH
VH
VIH
VIL
NU
NU
6.4V
LOW NOISE SELECT
VH
VIH
VH
VIH
VIL
NU
NU
6.4V
AUTO LATCH DISABLE
VH
VIH
VH
VIL
VIL
NU
NU
6.4V
WDT ENABLE
VH
VIL
VH
VIH
VIL
NU
NU
6.4V
EPROM/TEST MODE
VH
VIL
VH
VIL
VIL
NU
NU
6.4V
Notes:
1. VH =12.75V ± 0.25 VDC .
2. VIH = As per specific Z8 DC specification.
3. VIL= As per specific Z8 DC specification.
4. X = Not used, but must be set to VH or VIH level.
5. NU = Not used, but must be set to either VIH or VIL level.
6. IPP during programming = 40 mA maximum.
7. ICC during programming, verify, or read = 40 mA maximum.
8. * VCC has a tolerance of ±0.25V.
DS97Z8X1104
PRELIMINARY
33
1
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
FUNCTIONAL DESCRIPTION (Continued)
Internal Address Counter. The address of Z8 is generated internally with a counter clocked through pin P01
(Clock). Each clock signal increases the address by one
and the “high” level of pin P00 (Clear) will reset the address to zero. Figure 18 shows the setup time of the serial
address input.
Programming Waveform. Figures 19, 20, 21 and 22
show the programming waveforms of each mode. Table 8
shows the timing of programming waveforms.
Programming Algorithm. Figure 23 shows the flow chart
of the Z8 programming algorithm.
Table 8. Timing of Programming Waveforms
Parameters
1
2
3
34
Name
Min
Max
Units
µs
µs
µs
Address Setup Time
Data Setup Time
VPP Setup
2
2
2
4
VCC Setup Time
2
µs
5
6
7
8
9
10
11
12
13
14
15
16
17
Chip Enable Setup Time
Program Pulse Width
Data Hold Time
OE Setup Time
Data Access Time
Data Output Float Time
Overprogram Pulse Width
EPM Setup Time
PGM Setup Time
Address to OE Setup Time
Option Program Pulse Width
OE Width
Address Valid to OE Low
2
0.95
2
2
188
µs
ms
µs
µs
ns
ns
ms
µs
µs
µs
ms
ns
ns
100
2.85
2
2
2
78
250
125
PRELIMINARY
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
T2
1
P01 = Clock
T4
T3
T1
P00 = Clear
Vpp/EPM
T6
T5
Internal
Address
0 Min
Vih
Data
Vil
Invalid
Valid
Invalid
Valid
9
Legend:
T1 Reset Clock Width
T2 Input Clock High
T3 Input Clock Period
T4 Input Clock Low
T5 Clock to Address Counter Out Delay
T6 Epm/Vpp Set up Time
30 ns Min
100 ns Min
200 ns Min
100 ns Min
15 ns Max
40 µs Min
Figure 18. Z86E04/E08 Address Counter Waveform
DS97Z8X1104
PRELIMINARY
35
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
FUNCTIONAL DESCRIPTION (Continued)
VIH
Address
17
VIH
Data
VIL
Address Stable
Address Stable
VIL
Invalid
Valid
Invalid
Valid
9
VIH
VPP
VIL
VH
EPM
VIL
12
VCC
5.0V
VIH
CE
VIL
5
VIH
OE
VIL
16
16
VIH
PGM
VIL
13
Figure 19. Z86E04/E08 Programming Waveform
(EPROM Read)
36
PRELIMINARY
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
VIH
Address
Address
Stable
VIL
1
VIH
Data
1
Data
Stable
VIL
Data Out
Valid
2
9
10
VH
VPP
VIH
3
VH
EPM
VIL
6V
V CC
5.0V
VIH
4
7
CE
VIL
VIH
5
OE
VIL
13
16
VIH
PGM
VIL
6
8
11
Program
Cycle
Verify
Cycle
Figure 20. Z86E04/E08 Programming Waveform
(Program and Verify)
DS97Z8X1104
PRELIMINARY
37
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
FUNCTIONAL DESCRIPTION (Continued)
VIH
Address
VIL
VIH
Data
VPP
VIL
VH
VIH
3
6V
VCC
5.0V
4
VH
CE
VIH
5
OE
VIH
VIL
VH
EPM
VIH
VIL
VIH
PGM
VIH
12
12
13
13
VIL
15
15
EPROM Protect
Low Noise Program
Figure 21. Z86E04/E08 Programming Options Waveform
(EPROM Protect and Low Noise Program)
38
PRELIMINARY
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
VIH
Address
1
VIL
VIH
Data
VIL
VH
VPP
VIH
3
6V
VCC
5.0V
4
VH
CE
VIH
VIH
5
OE
VIL
12
12
13
13
VIH
EPM
VIL
VIH
12
12
13
13
PGM
VIL
15
Auto Latch
15
WDT
15
EPROM/Test
Mode Disabl e
Figure 22. Z86E04/E08 Programming Options Waveform
(Auto Latch Disable, Permanent WDT Enable and
EPROM/Test Mode Disable)
DS97Z8X1104
PRELIMINARY
39
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
FUNCTIONAL DESCRIPTION (Continued)
Start
Addr =
First Location
VCC = 6.4V
VPP= 13.0V
N=0
Program
1 ms Pulse
Increment N
N = 25 ?
Yes
No
Fail
Verify
One Byte
Verify
Byte
Fail
Pass
Pass
Prog. One Pulse
3xN ms Duration
Increment
Address
No
Last Addr ?
Yes
VCC = VPP = 5.0V
Verify All
Bytes
Pass
Fail
Device
Failed
Device
Passed
Figure 23. Z86E04/E08 Programming Algorithm
40
PRELIMINARY
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
Z8 CONTROL REGISTERS
R241 TMR
1
R244 T0
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
T0 Initial Value
(When Written)
(Range: 1-256 Decimal
01-00 HEX)
T0 Current Value
(When READ)
0 No Function
1 Load T0
0 Disable T0 Count
1 Enable T0 Count
0 No Function
1 Load T1
0 Disable T1 Count
1 Enable T1 Count
TIN Modes
00 External Clock Input
01 Gate Input
10 Trigger Input
(Non-retriggerable)
11 Trigger Input
(Retriggerable)
Figure 27. Counter/Timer 0 Register
(F4H: Read/Write)
R245 PRE0
D7 D6 D5 D4 D3 D2 D1 D0
Reserved (Must be 0)
Count Mode
0 T0 Single Pass
1 T0 Modulo N
Figure 24. Timer Mode Register (F1H: Read/Write)
Reserved (Must be 0)
Prescaler Modulo
(Range: 1-64 Decimal
01-00 HEX)
R242 T1
D7 D6 D5 D4 D3 D2 D1 D0
T 1 Initial Value
(When Written)
(Range 1-256 Decimal
01-00 HEX)
T 1 Current Value
(When READ)
Figure 28. Prescaler 0 Register (F5H: Write Only)
R246 P2M
D7 D6
D5
D4 D3
D2 D1
D0
Figure 25. Counter Timer 1 Register (F2H: Read/Write)
P2 7 - P2 0 I/O Definition
0 Defines Bit as OUTPUT
1 Defines Bit as INPUT
R243 PRE1
D7 D6 D5 D4 D3 D2 D1 D0
Figure 29. Port 2 Mode Register (F6H: Write Only)
Count Mode
0 = T 1 Single Pass
1 = T 1 Modulo N
Clock Source
1 = T 1 Internal
0 = T 1 External Timing Input
(T IN ) Mode
R247 P3M
D7 D6 D5 D4 D3 D2 D1 D0
Prescaler Modulo
(Range: 1-64 Decimal
01-00 HEX)
0 Port 2 Open-Drain
1 Port 2 Push-pull
Port 3 Inputs
0 Digital Mode
1 Analog Mode
Figure 26. Prescaler 1 Register (F3H: Write Only)
Reserved (Must be 0)
Figure 30. Port 3 Mode Register (F7H: Write Only)
DS97Z8X1104
PRELIMINARY
41
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
Z8 CONTROL REGISTERS (Continued)
R251 IMR
R248 P01M
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
1 Enables IRQ0-IRQ5
(D0 = IRQ0)
P02-P00 Mode
00 = Output
01 = Input
Reserved (Must be 0.)
1 Enables Interrupts
Reserved (Must be 1.)
Reserved (Must be 0.)
Figure 34. Interrupt Mask Register
(FBH: Read/Write)
Figure 31. Port 0 and 1 Mode Register
(F8H: Write Only)
R252 Flags
D7 D6
D5 D4 D3 D2 D1
D0
R249 IPR
D7
D6 D5 D4
D3 D2 D1
D0
User Flag F1
User Flag F2
Interrupt Group Priority
Reserved = 000
C > A > B = 001
A > B > C = 010
A > C > B = 011
B > C > A = 100
C > B > A = 101
B > A > C = 110
Reserved = 111
Half Carry Flag
Decimal Adjust Flag
Overflow Flag
Sign Flag
Zero Flag
Carry Flag
IRQ1, IRQ4 Priority (Group C)
0 = IRQ1 > IRQ4
1 = IRQ4 > IRQ1
Figure 35. Flag Register
(FCH: Read/Write)
IRQ0, IRQ2 Priority (Group B)
0 = IRQ2 > IRQ0
1 = IRQ0 > IRQ2
IRQ3, IRQ5 Priority (Group A)
0 = IRQ5 > IRQ3
1 = IRQ3 > IRQ5
Reserved (Must be 0.)
R253 RP
D7 D6 D5 D4 D3 D2 D1 D0
Figure 32. Interrupt Priority Register
(F9H: Write Only)
Expanded Register File
Working Register Pointer
Default After Reset = 00H
R250 IRQ
D7 D6
D5 D4 D3 D2
Figure 36. Register Pointer
(FDH: Read/Write)
D1 D0
IRQ0 = P32 Input
IRQ1 = P33 Input
IRQ2 = P31 Input
IRQ3 = P32 Input
IRQ4 = T0
IRQ5 = T1
R255 SPL
D7 D6
D5 D4 D3
D2 D1 D0
Reserved (Must be 0)
Stack Pointer Lower
Byte (SP 7 - SP 0 )
Figure 33. Interrupt Request Register
(FAH: Read/Write)
42
PRELIMINARY
Figure 37. Stack Pointer
(FFH: Read/Write)
DS97Z8X1104
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
PACKAGE INFORMATION
1
18-Pin DIP Package Diagram
18-Pin SOIC Package Diagram
DS97Z8X1104
PRELIMINARY
43
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Zilog
ORDERING INFORMATION
Z86E04
Z86E08
Standard Temperature
Standard Temperature
18-Pin DIP
18-Pin SOIC
18-Pin DIP
18-Pin SOIC
Z86E0412PSC
Z86E0412PEC
Z86E0412SSC
Z86E0412SEC
Z86E0812PSC
Z86E0812PEC
Z86E0812SSC
Z86E0812SEC
For fast results, contact your local Zilog sales office for assistance in ordering the part(s) desired.
Codes
Preferred Package
P = Plastic DIP
Speeds
12 =12 MHz
Longer Lead Time
S = SOIC
Environmental
C = Plastic Standard
Preferred Temperature
S = 0°C to +70°C
E = –40°C to +105°C
Example:
Z 86E04 12 P S C
is a Z86E04, 12 MHz, DIP, 0°C to +70°C, Plastic Standard Flow
Environmental Flow
Temperature
Package
Speed
Product Number
Zilog Prefix
© 1998 by Zilog, Inc. All rights reserved. No part of this
document may be copied or reproduced in any form or by
any means without the prior written consent of Zilog, Inc.
The information in this document is subject to change
without notice. Devices sold by Zilog, Inc. are covered by
warranty and patent indemnification provisions appearing
in Zilog, Inc. Terms and Conditions of Sale only.
ZILOG, INC. MAKES NO WARRANTY, EXPRESS,
STATUTORY, IMPLIED OR BY DESCRIPTION,
REGARDING THE INFORMATION SET FORTH HEREIN
OR REGARDING THE FREEDOM OF THE DESCRIBED
DEVICES
FROM
INTELLECTUAL
PROPERTY
INFRINGEMENT. ZILOG, INC. MAKES NO WARRANTY
OF MERCHANTABILITY OR FITNESS FOR ANY
PURPOSE.
Zilog, Inc. shall not be responsible for any errors that may
appear in this document. Zilog, Inc. makes no commitment
to update or keep current the information contained in this
document.
Zilog’s products are not authorized for use as critical
components in life support devices or systems unless a
specific written agreement pertaining to such intended use
is executed between the customer and Zilog prior to use.
Life support devices or systems are those which are
intended for surgical implantation into the body, or which
sustains life whose failure to perform, when properly used
in accordance with instructions for use provided in the
labeling, can be reasonably expected to result in
significant injury to the user.
Zilog, Inc. 210 East Hacienda Ave.
Campbell, CA 95008-6600
Telephone (408) 370-8000
FAX 408 370-8056
Internet: http://www.zilog.com
44
PRELIMINARY
DS97Z8X1104