ATMEL AT27C1024-70JC 1-megabit 64k x 16 otp eprom Datasheet

AT27C1024
Features
• Fast Read Access Time - 45 ns
• Low Power CMOS Operation
•
•
•
•
•
•
•
•
– 100 µA max. Standby
– 30 mA max. Active at 5 MHz
JEDEC Standard Packages
– 40-Lead 600-mil PDIP
– 44-Lead PLCC
– 40-Lead TSOP (10 mm x 14 mm)
Direct Upgrade from 512K (AT27C516) EPROM
5V ± 10% Power Supply
High Reliability CMOS Technology
– 2000V ESD Protection
– 200 mA Latchup Immunity
Rapid™ Programming Algorithm - 100 µs/word (typical)
CMOS and TTL Compatible Inputs and Outputs
Integrated Product Identification Code
Commercial and Industrial Temperature Ranges
AT27C1024
1-Megabit
(64K x 16)
OTP EPROM
AT27C1024
Description
The AT27C1024 is a low-power, high-performance 1,048,576 bit one-time programmable read only memory (OTP EPROM) organized 64K by 16 bits. It requires only
one 5V power supply in normal read mode operation. Any word can be accessed in
less than 45 ns, eliminating the need for speed reducing WAIT states. The by-16
organization make this part ideal for high-performance 16- and 32-bit microprocessor
systems.
(continued)
Pin Configurations
Pin Name
Function
A0 - A15
Addresses
O0 - O15
Outputs
CE
Chip Enable
OE
Output Enable
PGM
Program Strobe
NC
No Connect
Note:
Both GND pins must be
connected.
PDIP Top View
PLCC Top View
TSOP Top View
Type 1
0019I-A–7/97
1
AT27C1024
In read mode, the AT27C1024 typically consumes 15 mA.
Standby mode supply current is typically less than 10 µA.
The AT27C1024 is available in industry standard JEDECapproved one-time programmable (OTP) plastic PDIP,
PLCC, and TSOP packages. The device features two-line
control (CE, OE) to eliminate bus contention in high-speed
systems.
With high density 64K word storage capability, the
AT27C1024 allows firmware to be stored reliably and to be
accessed by the system without the delays of mass storage
media.
Atmel’s 27C1024 have additional features to ensure high
quality and efficient production use. The Rapid™ Programming Algorithm reduces the time required to program the
part and guarantees reliable programming. Programming
time is typically only 100 µs/word. The Integrated Product
Identification Code electronically identifies the device and
manufacturer. This feature is used by industry standard
programming equipment to select the proper programming
algorithms and voltages.
System Considerations
Switching between active and standby conditions via the
Chip Enable pin may produce transient voltage excursions.
Unless accommodated by the system design, these transients may exceed data sheet limits, resulting in device
non-conformance. At a minimum, a 0.1 µF high frequency,
low inherent inductance, ceramic capacitor should be utilized for each device. This capacitor should be connected
between the VCC and Ground terminals of the device, as
close to the device as possible. Additionally, to stabilize the
supply voltage level on printed circuit boards with large
EPROM arrays, a 4.7 µF bulk electrolytic capacitor should
be utilized, again connected between the VCC and Ground
terminals. This capacitor should be positioned as close as
possible to the point where the power supply is connected
to the array.
2
AT27C1024
Block Diagram
Absolute Maximum Ratings*
Temperature Under Bias ......................-55°C to +125°C
*NOTICE:
Storage Temperature............................-65°C to +150°C
Voltage on Any Pin with
Respect to Ground ..............................-2.0V to +7.0V (1)
Voltage on A9 with
Respect to Ground ...........................-2.0V to +14.0V (1)
VPP Supply Voltage with
Respect to Ground ............................-2.0V to +14.0V (1)
Note:
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the
device. This is a stress rating only and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended
periods may affect device reliability.
Minimum voltage is -0.6V DC which may undershoot to
-2.0V for pulses of less than 20 ns. Maximum output pin
voltage is VCC + 0.75V DC which may overshoot to +7.0V
for pulses of less than 20 ns.
Operating Modes
Mode/Pin
OE
PGM
Ai
VPP
Outputs
VIL
VIL
X(1)
Ai
X
DOUT
X
VIH
X
X
X
High Z
Standby
VIH
X
X
X
X(5)
High Z
Rapid Program(2)
VIL
VIH
VIL
Ai
VPP
DIN
PGM Verify
VIL
VIL
VIH
Ai
VPP
DOUT
PGM Inhibit
VIH
X
X
X
VPP
High Z
Product Identification(4)
VIL
VIL
X
A9 = VH(3)
A0 = VIH or VIL
A1 - A15 = VIL
VCC
Identification Code
Read
Output Disable
Notes:
CE
1. X can be VIL or VIH.
2. Refer to Programming Characteristics.
3. VH = 12.0 ± 0.5V.
4. Two identifier words may be selected. All Ai inputs are held low (VIL), except A9 which is set to VH and A0 which is toggled
low (VIL) to select the Manufacturer’s Identification word and high (VIH) to select the Device Code word.
5. Standby VCC current (ISB) is specified with VPP = VCC. VCC > VPP will cause a slight increase in ISB.
3
AT27C1024
DC and AC Operating Conditions for Read Operation
AT27C1024
Operating
Temperature
(Case)
-45
-55
-70
-90
-12
-15
0°C - 70°C
0°C - 70°C
0°C - 70°C
0°C - 70°C
0°C - 70°C
0°C - 70°C
-40°C - 85°C
-40°C - 85°C
-40°C - 85°C
-40°C - 85°C
-40°C - 85°C
-40°C - 85°C
5V ± 10%
5V ± 10%
5V ± 10%
5V ± 10%
5V ± 10%
5V ± 10%
Com.
Ind.
VCC Power Supply
DC and Operating Characteristics for Read Operation
Symbol
Parameter
Condition
ILI
Input Load Current
ILO
Max
Units
VIN = 0V to VCC
±1
µA
Output Leakage Current
VOUT = 0V to VCC
±5
µA
IPP1(2)
VPP(1)) Read/Standby Current
VPP = VCC
10
µA
VCC(1) Standby Current
ISB1 (CMOS), CE = VCC ± 0.3V
100
ISB
µA
ISB2 (TTL), CE = 2.0 to VCC + 0.5V
1
mA
ICC
VCC Active Current
f = 5 MHz, IOUT = 0 mA, CE = VIL
30
mA
VIL
Input Low Voltage
-0.6
0.8
V
VIH
Input High Voltage
2.0
VCC + 0.5
V
VOL
Output Low Voltage
IOL = 2.1 mA
0.4
V
VOH
Output High Voltage
IOH = -400 µA
Note:
Min
2.4
V
1. VCC must be applied simultaneously or before VPP, and removed simultaneously or after VPP.
2. VPP may be connected directly to VCC, except during programming. The supply current would then be the sum of ICC and
IPP.
AC Characteristics for Read Operation
AT27C1024
-45
Symbol Parameter
Condition
-55
-70
-90
-12
-15
Min Max Min Max Min Max Min Max Min Max Min Max Units
tACC(3)
Address to
Output Delay
CE = OE
= VIL
45
55
70
90
120
150
ns
tCE(2)
CE to Output
Delay
OE = VIL
45
55
70
90
120
150
ns
tOE(2)(3)
OE to Output
Delay
CE = VIL
20
25
25
30
35
50
ns
tDF(4)(5)
OE or CE High to Output Float,
whichever occurred first
20
25
25
30
30
40
ns
tOH
Output Hold from
Address, CE or OE,
whichever occurred first
Notes:
7
7
7
0
0
0
ns
2, 3, 4, 5. - see AC Waveforms for Read Operation.
4
AC Waveforms for Read Operation(1)
Notes:
1.
Timing measurement reference level is 1.5V for -45 and -55 devices. Input AC drive levels are VIL = 0.0V and VIH = 3.0V.
Timing measurement reference levels for all other speed grades are VOL = 0.8V and VOH = 2.0V. Input AC drive levels are
VIL = 0.45V and VIH = 2.4V.
2.
OE may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE.
3.
OE may be delayed up to tACC - tOE after the address is valid without impact on tACC.
4.
This parameter is only sampled and is not 100% tested.
5.
Output float is defined as the point when data is no longer driven.
Pin Capacitance
(f = 1 MHz T = 25°C)(1)
Typ
Max
Units
CIN
4
10
pF
VIN = 0V
COUT
8
12
pF
VOUT = 0V
Note:
Conditions
1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
Input Test Waveforms and Measurement Levels
Output Test Load
For -45 and -55
Devices Only
For -70 and slower
Devices Only
5
AT27C1024
Note:
CL = 100 pF including jig
capacitance except -45 and -55
devices, where CL = 30 pF.
AT27C1024
Programming Waveforms(1)
Notes:
1.
The Input Timing Reference is 0.8V for V IL and 2.0V for VIH.
2.
tOE and tDFP are characteristics of the device but must be accommodated by the programmer.
3.
When programming the AT27C1024 a 0.1 µF capacitor is reqired across VPP and ground to suppress sputious voltage transients.
DC Programming Characteristics
TA = 25 ± 5×C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V
Limits
Symbol
Parameter
Test Conditions
ILI
Input Load Current
VIN = VIL, VIH
VIL
Input Low Level
VIH
Input High Level
VOL
Output Low Voltage
IOL = 2.1 mA
VOH
Output High Voltage
IOH = -400 µA
ICC2
VCC Supply Current (Program and Verify)
IPP2
VPP Supply Current
VID
A9 Product Identification Voltage
Min
Max
Units
±10
µA
-0.6
0.8
V
2.0
VCC + 0.1
V
0.4
V
2.4
CE = PGM = VIL
11.5
V
50
mA
30
mA
12.5
V
6
AT27C1024
AC Programming Characteristics
TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V
Limits
Test Conditions(1)
Min
Max
Units
Symbol
Parameter
tAS
Address Setup Time
2
µs
tCES
CE Setup Time
2
µs
tOES
OE Setup Time
2
µs
tDS
Data Setup Time
2
µs
tAH
Address Hold Time
0
µs
tDH
Data Hold Time
0.45V to 2.4V
2
µs
tDFP
OE High to Output Float Delay(2)
0
tVPS
VPP Setup Time
Input Timing Reference Level
0.8V to 2.0V
tVCS
VCC Setup Time
tPW
PGM Program Pulse Width(3)
tOE
Data Valid from OE
tPRT
VPP Pulse Rise Time During Programming
Notes:
Input Rise and Fall Times
(10% to 90%) 20ns
Input Pulse Levels
Output Timing Reference Level
0.8V to 2.0V
130
2
µs
2
µs
95
105
µs
150
ns
50
1.
VCC must be applied simultaneously or before VPP and removed simultaneously or after VPP.
2.
This parameter is only sampled and is not 100%
tested. Output Float is defined as the point where data is no longer driven — see timing diagram.
3.
Program Pulse width tolerance is 100 µsec ± 5%.
ns
ns
Atmel’s 27C1024 Integrated
Product Identification Code
Pins
A0
015-08
O7
O6
O5
O4
O3
O2
O1
O0
Hex
Data
Manufacturer
0
0
0
0
0
1
1
1
1
0
001E
Device Type
1
0
1
1
1
1
0
0
0
1
00F1
Codes
7
Rapid Programming Algorithm
A 100 µs PGM pulse width is used to program. The
address is set to the first location. VCC is raised to 6.5V and
VPP is raised to 13.0V. Each address is first programmed
with one 100 µs PGM pulse without verification. Then a verification / reprogramming loop is executed for each
address. In the event a word fails to pass verification, up to
10 successive 100 µs pulses are applied with a verification
8
AT27C1024
after each pulse. If the word fails to verify after 10 pulses
have been applied, the part is considered failed. After the
word verifies properly, the next address is selected until all
have been checked. VPP is then lowered to 5.0V and VCC
to 5.0V. All words are read again and compared with the
original data to determine if the device passes or fails.
AT27C1024
Ordering Information
ICC (mA)
tACC
(ns)
Active
Standby
Ordering Code
Package
Operation Range
45
30
0.1
AT27C1024-45JC
AT27C1024-45PC
AT27C1024-45VC
44J
40P6
40V
Commercial
(0°C to 70°C)
30
0.1
AT27C1024-45JI
AT27C1024-45PI
AT27C1024-45VI
44J
40P6
40V
Industrial
(-40°C to 85°C)
30
0.1
AT27C1024-55JC
AT27C1024-55PC
AT27C1024-55VC
44J
40P6
40V
Commercial
(0°C to 70°C)
30
0.1
AT27C1024-55JI
AT27C1024-55PI
AT27C1024-55VI
44J
40P6
40V
Industrial
(-40°C to 85°C)
30
0.1
AT27C1024-70JC
AT27C1024-70PC
AT27C1024-70VC
44J
40P6
40V
Commercial
(0°C to 70°C)
30
0.1
AT27C1024-70JI
AT27C1024-70PI
AT27C1024-70VI
44J
40P6
40V
Industrial
(-40°C to 85°C)
30
0.1
AT27C1024-90JC
AT27C1024-90PC
AT27C1024-90VC
44J
40P6
40V
Commercial
(0°C to 70°C)
30
0.1
AT27C1024-90JI
AT27C1024-90PI
AT27C1024-90VI
44J
40P6
40V
Industrial
(-40°C to 85°C)
30
0.1
AT27C1024-12JC
AT27C1024-12PC
AT27C1024-12VC
44J
40P6
40V
Commercial
(0°C to 70°C)
30
0.1
AT27C1024-12JI
AT27C1024-12PI
AT27C1024-12VI
44J
40P6
40V
Industrial
(-40°C to 85°C)
30
0.1
AT27C1024-15JC
AT27C1024-15PC
AT27C1024-15VC
44J
40P6
40V
Commercial
(0°C to 70°C)
30
0.1
AT27C1024-15JI
AT27C1024-15PI
AT27C1024-15VI
44J
40P6
40V
Industrial
(-40°C to 85°C)
55
70
90
120
150
Package Type
44J
44-Lead, Plastic J-Leaded Chip Carrier (PLCC)
40P6
40-Lead, 0.600" Wide, Plastic Dual Inline Package (PDIP)
40V
40-Lead, Plastic Thin Small Outline Package (TSOP) 10 x 14 mm
9
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