AT27BV400 Datasheet, PDF (1/11 Pages) ATMEL Corporation – 4-Megabit 256K x 16 or 512K x 8 Unregulated Battery-Voltage High Speed OTP EPROM

Features
• Fast Read Access Time - 120 ns
• Word-wide or Byte-wide Configurable
• Dual Voltage Range Operation
– Unregulated Battery Power Supply Range, 2.7V to 3.6V
or Standard 5V ± 10% Supply Range
• 4-Megabit Flash and Mask ROM Compatable
• Low Power CMOS Operation
– 20 µA Maximum Standby
– 10 mA Max. Active at 5 MHz for V_CC = 3.6V
• JEDEC Standard Packages
– 44-Lead PLCC
– 44-Lead SOIC (SOP)
– 48-Lead TSOP (12 mm x 20 mm)
• High Reliability CMOS Technology
– 2,000 ESD Protection
– 200 mA Latchup Immunity
• Rapid^™ Programming Algorithm - 50 µs/word (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 AT27BV400 is a high performance low-power, low-voltage 4,194,304-bit one time
programmable read only memory (OTP EPROM) organized as either 256K by 16 or
512K by 8 bits. It requires only one supply in the range of 2.7 to 3.6V in normal read
Pin Configurations
PLCC
(continued)
Pin Name
A0 - A17
O0 - O15
O15/A-1
BYTE/V_PP
CE
OE
NC
Function
Addresses
Outputs
Output/Address
Byte Mode/
Program Supply
Chip Enable
Output Enable
No Connect
A4 7
A3 8
A2 9
A1 10
A0 11
CE 12
GND 13
OE 14
O0 15
O8 16
O1 17
39 A12
38 A13
37 A14
36 A15
35 A16
34 BYTE/VPP
33 GND
32 O15/A-1
31 07
30 O14
29 O6
TSOP
Type 1
SOIC (SOP)
NC 1
NC 2
A17 3
A7 4
A6 5
A5 6
A4 7
A3 8
A2 9
A1 10
A0 11
CE 12
GND 13
OE 14
O0 15
O8 16
O1 17
O9 18
O2 19
O10 20
O3 21
O11 22
44 NC
43 NC
42 A8
41 A9
40 A10
39 A11
38 A12
37 A13
36 A14
35 A15
34 A16
33 BYTE/VPP
32 GND
31 015/A-1
30 O7
29 O14
28 O6
27 O13
26 O5
25 O12
24 O4
23 VCC
A15 1
A14 2
A13 3
A12 4
A11 5
A10 6
A9 7
A8 8
NC 9
NC 10
NC 11
NC 12
NC 13
NC 14
NC 15
NC 16
A17 17
A7 18
A6 19
A5 20
A4 21
A3 22
A2 23
A1 24
48 A16
47 BYTE/VPP
46 GND
45 015/A-1
44 O7
43 O14
42 O6
41 O13
40 O5
39 O12
38 O4
37 VCC
36 O11
35 O3
34 O10
33 O2
32 O9
31 O1
30 O8
29 O0
28 OE
27 GND
26 CE
25 A0
4-Megabit
(256K x 16 or
512K x 8)
Unregulated
Battery-Voltage^™
High Speed
OTP EPROM
AT27BV400
Preliminary
AT27BV400
Preliminary
Rev. 0989A–03/98
1