Rainbow Electronics AT27BV020 - Manual

1
PLCC, Top View
5
6
7
8
9
10
11
12
13
29
28
27
26
25
24
23
22
21
A7
A6
A5
A4
A3
A2
A1
A0
O0
A14
A13
A8
A9
A11
OE
A10
CE
O7
4 3 2 1
32 31 30
14 15 16 17 18 19 20
O1 O2
GND
O3 O4 O5 O6
A12 A15 A16 VPP VCC PGM A17
Features
• Fast Read Access Time – 90 ns
• Dual Voltage Range Operation
– Unregulated Battery Power Supply Range, 2.7V to 3.6V
or Standard 5V
± 10% Supply Range
• Compatible with JEDEC Standard AT27C020
• Low-power CMOS Operation
– 20 µA max. (Less than 1 µA Typical) Standby for V
CC
= 3.6V
– 29 mW max. Active at 5 MHz for V
CC
= 3.6V
• Wide Selection of JEDEC Standard Packages
– 32-lead PLCC
– 32-lead TSOP (8 x 20 mm)
– 32-lead VSOP (8 x 14 mm)
• High Reliability CMOS Technology
– 2,000V ESD Protection
– 200 mA Latch-up Immunity
• Rapid ™ Programming Algorithm – 100 µs/Byte (Typical)
• CMOS and TTL Compatible Inputs and Outputs
– JEDEC Standard for LVTTL and LVBO
• Integrated Product Identification Code
• Commercial and Industrial Temperature Ranges
Description
The AT27BV020 is a high-performance, low-power, low-voltage, 2,097,152-bit, one-
time programmable, read-only memory (OTP EPROM) organized as 256K by 8 bits. It
requires only one supply in the range of 2.7 to 3.6V in normal read mode operation,
making it ideal for fast, portable systems using either regulated or unregulated battery
power.
2-megabit
(256K x 8)
Unregulated
Battery-Voltage
™
High-speed
OTP EPROM
AT27BV020
TSOP, VSOP Top View
Type 1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
A11
A9
A8
A13
A14
A17
PGM
VCC
VPP
A16
A15
A12
A7
A6
A5
A4
OE
A10
CE
O7
O6
O5
O4
O3
GND
O2
O1
O0
A0
A1
A2
A3
Rev. 0902D–04/01
Pin Configurations
Pin Name Function
A0 - A17 Addresses
O0 - O7 Outputs
CE Chip Enable
OE Output Enable
PGM Program Strobe
NC No Connect
(continued)