ATMEL AT27C080-10TC 8-megabit 1m x 8 uv erasable cmos eprom Datasheet

AT27C080
Features
• Fast Read Access Time - 90 ns
• Low Power CMOS Operation
•
•
•
•
•
•
•
- 100 µA max. Standby
- 40 mA max. Active at 5 MHz
JEDEC Standard Packages
- 32 Lead PLCC
- 32-Lead 600-mil PDIP and Cerdip
- 32-Lead 450-mil SOIC (SOP)
- 32-Lead TSOP
5V ± 10% Supply
High-Reliability CMOS Technology
- 2,000V ESD Protection
- 200 mA Latchup Immunity
Rapid™ Programming Algorithm - 50 µs/byte (typical)
CMOS and TTL Compatible Inputs and Outputs
Integrated Product Identification Code
Industrial and Commercial Temperature Ranges
8-Megabit
(1M x 8)
UV Erasable
CMOS EPROM
Description
The AT27C080 chip is a low-power, high-performance 8,388,608-bit ultraviolet erasable programmable read only memory (EPROM) organized as 1M by 8 bits. The
AT27C080 requires only one 5V power supply in normal read mode operation. Any
byte can be accessed in less than 90 ns, eliminating the need for speed reducing
WAIT states on high-performance microprocessor systems.
Atmel’s scaled CMOS technology provides low active power consumption and fast
programming. Power consumption is typically 10 mA in active mode and less than 10
µA in standby mode.
(continued)
CDIP, PDIP, SOIC Top View
Pin Configurations
Addresses
O0 - O7
Outputs
CE
Chip Enable
OE
Output Enable
TSOP Top View
Type 1
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
OE/VPP
A10
CE
07
06
05
04
03
GND
02
01
O0
A0
A1
A2
A3
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VCC
A18
A17
A14
A13
A8
A9
A11
OE/VPP
A10
CE
07
06
05
04
03
PLCC Top View
A12
A15
A16
A19
VCC
A18
A17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A7
A6
A5
A4
A3
A2
A1
A0
O0
4
3
2
1
32
31
30
A0 - A19
A19
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
O0
O1
O2
GND
5
6
7
8
9
10
11
12
13
29
28
27
26
25
24
23
22
21
14
15
16
17
18
19
20
Function
A14
A13
A8
A9
A11
OE/VPP
A10
CE
07
0360F-B–7/97
01
02
GND
03
04
05
06
Pin Name
A11
A9
A8
A13
A14
A17
A18
VCC
A19
A16
A15
A12
A7
A6
A5
A4
AT27C080
1
The AT27C080 is available in a choice of packages, including; one-time programmable (OTP) plastic PLCC, PDIP,
SOIC (SOP), and TSOP, as well as windowed ceramic
Cerdip. All devices feature two-line control (CE, OE) to give
designers the flexibility to prevent bus contention.
With h igh dens ity 1M byte s torage capabi lity, the
AT27C080 allows firmware to be stored reliably and to be
accessed by the system without the delays of mass storage
media.
Atmel’s 27C080 has 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 50 µs/byte. 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.
Erasure Characteristics
The entire memory array of the AT27C080 is erased (all
outputs read as VOH) after exposure to ultraviolet light at a
wavelength of 2,537Å. Complete erasure is assured after a
minimum of 20 minutes of exposure using 12,000 µW/cm2
intensity lamps spaced one inch away from the chip. Minimum erase time for lamps at other intensity ratings can be
calculated from the minimum integrated erasure dose of 15
W.sec/cm2. To prevent unintentional erasure, an opaque
label is recommended to cover the clear window on any UV
erasable EPROM that will be subjected to continuous
flourescent indoor lighting or sunlight.
2
AT27C080
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.
AT27C080
Block Diagram
Absolute Maximum Ratings*
Temperature Under Bias ...................-55°C to +125°C
*NOTICE:
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.
Note:
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.
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)
Integrated UV Erase Dose................ 7258 W•sec/cm2
1.
Operating Modes
Mode/Pin
CE
OE/VPP
Ai
Outputs
Read
VIL
VIL
Ai
DOUT
Output Disable
X
VIH
VIH
X
X
High Z
VIL
VPP
Ai
DIN
PGM Verify
VIL
VIL
Ai
DOUT
PGM Inhibit
VIH
VPP
X
High Z
VIL
A9 = VH(3)
A0 = VIH or VIL
A1 - A19 = VIL
Identification Code
Standby
Rapid Program
(2)
Product Identification
Notes:
(4)
VIL
X
(1)
High Z
1. X can be VIL or VIH.
2. Refer to Programming Characteristics.
3. VH = 12.0 ± 0.5V.
4. Two identifier bytes 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 byte and high (VIH) to select the Device Code byte.
3
DC and AC Operating Conditions for Read Operation
AT27C080
Operating Temperature (Case)
Com.
Ind.
VCC Power Supply
-90
-10
-12
-15
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
5V ± 10%
5V ± 10%
5V ± 10%
5V ± 10%
DC and Operating Characteristics for Read Operation
Symbol
Parameter
Condition
ILI
Input Load Current
ILO
Output Leakage Current
ISB
VCC(1) Standby Current
ICC
VCC Active Current
VIL
Input Low Voltage
VIH
Input High Voltage
VOL
Output Low Voltage
IOL = 2.1 mA
Output High Voltage
IOH = -400 µA
VOH
Note:
Min
Max
Units
VIN = 0V to VCC (Com., Ind.)
±1.0
µA
VOUT = 0V to VCC (Com., Ind.)
±5.0
µA
ISB1 (CMOS), CE = VCC ± 0.3V
100
µA
ISB2 (TTL), CE = 2.0 to VCC + 0.5V
1.0
mA
f = 5 MHz, IOUT = 0 mA, CE = VIL
40
mA
-0.6
0.8
V
2.0
VCC + 0.5
V
0.4
V
2.4
V
1. VCC must be applied simultaneously or before OE/ VPP, and removed simultaneously or after OE/VPP.
AC Characteristics for Read Operation
AT27C080
-90
Symbol Parameter
Condition
tACC(4)
tCE
Max
Min
-12
Max
Min
-15
Max
Min
Max
Units
Address to Output Delay
CE = OE/VPP = VIL
90
100
120
150
ns
(3)
CE to Output Delay
OE = VIL
90
100
120
150
ns
(3)(4)
OE to Output Delay
CE = VIL
20
20
30
35
ns
30
30
35
40
ns
tOE
tDF(2)(5)
OE or CE High to Output Float,
whichever occurred first
tOH
Output Hold from Address, CE or
OE/VPP,whichever occurred first
Note:
4
Min
-10
2, 3, 4, 5. See AC Waveforms for Read Operation.
AT27C080
0
0
0
0
ns
AT27C080
AC Waveforms for Read Operation(1)
Notes:
1.
Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified.
2.
tDF is specified form OE/VPP or CE, whichever occurs first. Output float is defined as the point when data is no longer
driven.
3.
OE/VPP may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE.
4.
OE/VPP may be delayed up to tACC- tOE after the address is valid without impact on tACC.
5.
This parameter is only sampled and is not 100% tested.
Input Test Waveform and Measurement Levels
Output Test Load
tR, tF < 20 ns (10% to 90%)
Note:
1.
CL = 100 pF including jig
capacitance.
Pin Capacitance
f = 1 MHz, T = 25°C(1)
Typ
Max
Units
Conditions
CIN
4
8
pF
VIN = 0V
COUT
8
12
pF
VOUT = 0V
Note:
1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
5
Programming Waveforms
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.
DC Programming Characteristics
TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, OE/VPP = 13.0 ± 0.25V
Limits
6
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
OE/VPP Supply Current
VID
A9 Product Identification Voltage
AT27C080
Min
Max
Units
±10
µA
-0.6
0.8
V
2.0
VCC + 1.0
V
0.4
V
2.4
CE = VIL
11.5
V
40
mA
25
mA
12.5
V
AT27C080
AC Programming Characteristics
TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, OE/VPP = 13.0 ± 0.25V
Limits
Test Conditions(1)
Min
Max
Units
Symbol
Parameter
tAS
Address Setup Time
2.0
µs
tOES
OE/VPP Setup Time
2.0
µs
tOEH
OE/VPP Hold Time
2.0
µs
tDS
Data SetupTime
2.0
µs
tAH
Address Hold Time
0.0
µs
tDH
Data Hold Time
2.0
µs
Input Rise and Fall Times:
(10% to 90%) 20 ns.
Input Pulse Levels:
0.45V to 2.4V
tDFP
CE High to Output Float Delay
tVCS
VCC Setup Time
tPW
(2)
0.0
Input Timing Reference Level:
0.8V to 2.0V
CE Program Pulse Width
(3)
130
ns
µs
2.0
47.5
Output Timing Reference Level:
0.8V to 2.0V
52.5
µs
1.0
µs
tDV
Data Valid from CE
tVR
OE/VPP Recovery Time
2.0
ns
tPRT
OE/VPP Pulse Rise Time During
Programming
50
ns
Notes:
1. VCC must be applied simultaneously or before OE/VPP and removed simultaneously or after OE/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 50 µs ± 5%.
Atmel’s 27C080 Integrated Product Identification Code
Pins
Codes
A0
O7
O6
O5
O4
O3
O2
O1
O0
Hex Data
Manufacturer
0
0
0
0
1
1
1
1
0
1E
Device Type
1
1
0
0
0
1
0
1
0
8A
7
Rapid Programming Algorithm
A 50 µs CE pulse width is used to program. The address is
set to the first location. VCC is raised to 6.5V and OE/VPP is
raised to 13.0V. Each address is first programmed with one
50 µs CE pulse without verification. Then a verification
reprogramming loop is executed for each address. In the
event a byte fails to pass verification, up to 10 successive
50 µs pulses are applied with a verification after each
8
AT27C080
pulse. If the byte fails to verify after 10 pulses have been
applied, the part is considered failed. After the byte verifies
properly, the next address is selected until all have been
checked. OE/VPP is then lowered to VIL and VCC to 5.0V. All
bytes are read again and compared with the original data to
determine if the device passes or fails.
AT27C080
Ordering Information
tACC
(ns)
90
100
ICC (mA)
Active
Standby
Ordering Code
Package
Operation Range
40
0.1
AT27C080-90DC
AT27C080-90JC
AT27C080-90PC
AT27C080-90RC
AT27C080-90TC
32DW6
32J
32P6
32R
32T
Commercial
(0°C to 70°C)
40
0.1
AT27C080-90DI
AT27C080-90JI
AT27C080-90PI
AT27C080-90RI
AT27C080-90TI
32DW6
32J
32P6
32R
32T
Industrial
(-40°C to 85°C)
40
0.1
AT27C080-10DC
AT27C080-10JC
AT27C080-10PC
AT27C080-10RC
AT27C080-10TC
32DW6
32J
32P6
32R
32T
Commercial
(0°C to 70°C)
40
0.1
AT27C080-10DI
AT27C080-10JI
AT27C080-10PI
AT27C080-10RI
AT27C080-10TI
32DW6
32J
32P6
32R
32T
Industrial
(-40°C to 85°C)
(continued)
Package Type
32DW6
32-Lead, 0.600" Windowed, Ceramic Dual Inline Package (Cerdip)
32J
32-Lead,Plastic J-Leaded Chip Carrier (PLCC)
32P6
32-Lead, 0.600" Wide, Plastic Dual Inline Package (PDIP)
32R
32-Lead, 0.450" Wide, Plastic Gull Wing Small Outline (SOIC)
32T
32-Lead, Plastic Thin Small Outline Package (TSOP)
9
Ordering Information (Continued)
tACC
(ns)
120
150
ICC (mA)
Active
Standby
Ordering Code
Package
40
0.1
AT27C080-12DC
AT27C080-12JC
AT27C080-12PC
AT27C080-12RC
AT27C080-12TC
32DW6
32J
32P6
32R
32T
Commercial
(0°C to 70°C)
40
0.1
AT27C080-12DI
AT27C080-12JI
AT27C080-12PI
AT27C080-12RI
AT27C080-12TI
32DW6
32J
32P6
32R
32T
Industrial
(-40°C to 85°C)
40
0.1
AT27C080-15DC
AT27C080-15JC
AT27C080-15PC
AT27C080-15RC
AT27C080-15TC
32DW6
32J
32P6
32R
32T
Commercial
(0°C to 70°C)
40
0.1
AT27C080-15DI
AT27C080-15JI
AT27C080-15PI
AT27C080-15RI
AT27C080-15TI
32DW6
32J
32P6
32R
32T
Industrial
(-40°C to 85°C)
Package Type
32DW6
32-Lead, 0.600" Windowed, Ceramic Dual Inline Package (Cerdip)
32J
32-Lead,Plastic J-Leaded Chip Carrier (PLCC)
32P6
32-Lead, 0.600" Wide, Plastic Dual Inline Package (PDIP)
32R
32-Lead, 0.450" Wide, Plastic Gull Wing Small Outline (SOIC)
32T
32-Lead, Plastic Thin Small Outline Package (TSOP)
10
AT27C080
Operation Range
Similar pages