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25C160 Datasheet, PDF (1/22 Pages) Microchip Technology – 16K SPI Bus Serial EEPROM | |||
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Not recommended for new designs â
Please use 25AA160A/B or 25LC160A/B.
25AA160/25LC160/25C160
16K SPI⢠Bus Serial EEPROM
Device Selection Table
Part
Number
25AA160
25LC160
25C160
VCC
Range
1.8-5.5V
2.5-5.5V
4.5-5.5V
Max Clock
Frequency
1 MHz
2 MHz
3 MHz
Temp
Ranges
I
I
I,E
Features:
⢠Low-power CMOS technology:
- Write current: 3 mA maximum
- Read current: 500 µA typical
- Standby current: 500 nA typical
⢠2048 x 8-bit organization
⢠16 byte page
⢠Write cycle time: 5 ms max.
⢠Self-timed erase and write cycles
⢠Block write protection:
- Protect none, 1/4, 1/2 or all of array
⢠Built-in write protection:
- Power on/off data protection circuitry
- Write enable latch
- Write-protect pin
⢠Sequential read
⢠High reliability:
- Endurance: 1 M cycles
- Data retention: > 200 years
- ESD protection: > 4000V
⢠8-pin PDIP and SOIC packages
⢠Temperature ranges supported:
- Industrial (I):
-40°C to +85°C
- Automotive (E) (25C160): -40°C to +125°C
*25XX160 is used in this document as a generic part number
for the 25AA160/25LC160/25C160 devices.
SPI⢠is a trademark of Motorola Inc.
Description:
The Microchip Technology Inc. 25AA160/25LC160/
25C160 (25XX160*) are 16 Kbit Serial Electrically
Erasable PROMs. The memory is accessed via a
simple Serial Peripheral Interface⢠(SPIâ¢) compati-
ble serial bus. The bus signals required are a clock
input (SCK) plus separate data in (SI) and data out
(SO) lines. Access to the device is controlled through a
Chip Select (CS) input.
Communication to the device can be paused via the
hold pin (HOLD). While the device is paused, transi-
tions on its inputs will be ignored, with the exception of
chip select, allowing the host to service higher priority
interrupts.
Package Types
PDIP/SOIC
CS 1
SO 2
WP 3
VSS 4
8 VCC
7 HOLD
6 SCK
5 SI
Block Diagram
Status
Register
HV Generator
I/O Control
Logic
Memory X
Control
Logic Dec
EEPROM
Array
Page Latches
SI
SO
CS
SCK
HOLD
WP
VCC
VSS
Y Decoder
Sense Amp.
R/W Control
 2004 Microchip Technology Inc.
DS21231D-page 1
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