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PDF AT27C040-70PI Data sheet ( Hoja de datos )
| Número de pieza | AT27C040-70PI | |
| Descripción | 4-Megabit 512K x 8 OTP EPROM | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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AT27C040
Features
• Fast Read Access Time - 70 ns
• Low Power CMOS Operation
100 µA max. Standby
30 mA max. Active at 5 MHz
• JEDEC Standard Packages
32-Lead 600-mil PDIP
32-Lead 450-mil SOIC (SOP)
32-Lead PLCC
32-Lead TSOP
• 5V ± 10% Supply
• High Reliability CMOS Technology
2000V ESD Protection
200 mA Latchup Immunity
• Rapid™Programming Algorithm - 100 µs/byte (typical)
• CMOS and TTL Compatible Inputs and Outputs
• Integrated Product Identification Code
• Commercial and Industrial Temperature Ranges
Description
The AT27C040 chip is a low-power, high-performance, 4,194,304-bit one-time pro-
grammable read only memory (OTP EPROM) organized as 512K by 8 bits. The
AT27C040 requires only one 5V power supply in normal read mode operation. Any
byte can be accessed in less than 70 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 8 mA in active mode and less than 10
µA in standby mode.
(continued)
Pin Configurations
Pin Name Function
PDIP, SOIC Top View
A0 - A18 Addresses
O0 - O7 Outputs
CE Chip Enable
OE Output Enable
4-Megabit
(512K x 8)
OTP EPROM
AT27C040
PLCC Top View
TSOP Top View
0189E-A–7/97
1
1 page  
AC Waveforms for Read Operation(1)
AT27C040
Notes: 1. Tiiming measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified.
2. OE may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE.
3. OE may be delayed up to tACC - tOE after the address is valid without impact on tACC.
4. This parameter is only sampled and is not 100% tested.
5. Output float is defined as the point when data is no longer driven.
Input Test Waveforms and Measurement Levels
Output Test Load
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
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet AT27C040-70PI.PDF ] | |
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