AT27LV256A Ver la hoja de datos (PDF) - Atmel Corporation
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AT27LV256A Datasheet PDF : 12 Pages
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Features
• Fast Read Access Time - 55ns
• Dual Voltage Range Operation
– Low-voltage Power Supply Range, 3.0V to 3.6V
or Standard 5V ± 10% Supply Range
• Pin Compatible with JEDEC Standard AT27C256R
• Low-power CMOS Operation
– 20 µA max. (less than 1 µA typical) Standby for VCC = 3.6V
– 29 mW max. Active at 5 MHz for VCC = 3.6V
• JEDEC Standard Packages
– 32-lead PLCC
– 28-lead 330-mil SOIC
– 28-lead TSOP
• High-reliability CMOS Technology
– 2,000V ESD Protection
– 200 mA Latchup Immunity
• Rapid™ Programming Algorithm - 100 µs/byte (typical)
• CMOS and TTL Compatible Inputs and Outputs
– JEDEC Standard for LVTTL
• Integrated Product Identification Code
• Commercial and Industrial Temperature Ranges
Description
The AT27LV256A is a high performance, low power, low voltage 262,144-bit one-time
programmable read only memory (OTP EPROM) organized as 32K by 8 bits. It
requires only one supply in the range of 3.0V to 3.6V in normal read mode operation,
(continued)
Pin Configurations
SOIC Top View
Pin Name
A0 - A14
O0 - O7
CE
OE
NC
Function
Addresses
Outputs
Chip Enable
Output Enable
No Connect
VPP 1
A12 2
A7 3
A6 4
A5 5
A4 6
A3 7
A2 8
A1 9
A0 10
O0 11
O1 12
O2 13
GND 14
28 VCC
27 A14
26 A13
25 A8
24 A9
23 A11
22 OE
21 A10
20 CE
19 O7
18 O6
17 O5
16 O4
15 O3
PLCC Top View
TSOP Top View
Type 1
A6 5
A5 6
A4 7
A3 8
A2 9
A1 10
A0 11
NC 12
O0 13
29 A8
28 A9
27 A11
26 NC
25 OE
24 A10
23 CE
22 O7
21 O6
Note: PLCC Package Pins 1 and 17
are DON’T CONNECT.
OE 22
A11 23
A9 24
A8 25
A13 26
A14 27
VCC 28
VPP 1
A12 2
A7 3
A6 4
A5 5
A4 6
A3 7
21 A10
20 CE
19 O7
18 O6
17 O5
16 O4
15 O3
14 GND
13 O2
12 O1
11 O0
10 A0
9 A1
8 A2
256K (32K x 8)
Low-voltage
OTP EPROM
AT27LV256A
Rev. 0547C–05/00
1
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