Rainbow Electronics AT27C516 - Manual

1
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
– 44-Lead PLCC
– 40-Lead VSOP (10mm x 14mm)
• 5V
±
10% Power Supply
• High Reliability CMOS Technology
– 2000V ESD Protection
– 200 mA Latchup Immunity
• Rapid™ Programming Algorithm - 50 µs/word (typical)
• CMOS and TTL Compatible Inputs and Outputs
• Integrated Product Identification Code
• Commercial and Industrial Temperature Ranges
Description
The AT27C516 is a low-power, high performance 524,288-bit one-time programmable
read only memory (OTP EPROM) organized 32K 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.
In read mode, the AT27C516 typically consumes 15 mA. Standby mode supply cur-
rent is typically less than 10
µ
A.
512K (32K x 16)
OTP EPROM
AT27C516
Rev. 0362C–10/98
Note: Both GND pins must be connected.
Pin Configurations
Pin Name Function
A0 - A14 Addresses
O0 - O15 Outputs
CE Chip Enable
OE Output Enable
PGM Program Strobe
NC No Connect
VSOP Top View
Type 1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
A9
A10
A11
A12
A13
A14
NC
NC
PGM
VCC
VPP
CE
O15
O14
O13
O12
O11
O10
O9
O8
GND
A8
A7
A6
A5
A4
A3
A2
A1
A0
OE
O0
O1
O2
O3
O4
O5
O6
O7
GND
PLCC Top View
Note: PLCC Package Pins 1 and 23 are
DON’T CONNECT.
7
8
9
10
11
12
13
14
15
16
17
39
38
37
36
35
34
33
32
31
30
29
O12
O11
O10
O9
O8
GND
NC
O7
O6
O5
O4
A13
A12
A11
A10
A9
GND
NC
A8
A7
A6
A5
6 5 4 3 2 1
44 43 42 41 40
18 19 20 21 22 23 24 25 26 27 28
O3 O2 O1 O0 OE NC A0 A1 A2 A3 A4
O13 O14 O15 CE VPP NC VCC PGM NC NC A14
(continued)