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25LC160I/P Datasheet

  • 25LC160I/P

  • Serial EEPROM 16K SPI Bus(133.20 k)

  • 16頁(yè)

  • ETC

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M
25AA160/25LC160/25C160
16K SPI
鈩?/div>
Bus Serial EEPROM
PACKAGE TYPES
Temp
Ranges
C,I,E
C,I
C,I
PDIP/SOIC
CS
SO
WP
V
SS
1
25xx160
2
3
4
8
7
6
5
V
CC
HOLD
SCK
SI
DEVICE SELECTION TABLE
Part
Number
25C160
25LC160
25AA160
V
CC
Range
4.5-5.5V
2.5-5.5V
1.8-5.5V
Max Clock
Frequency
3 MHz
2 MHz
1 MHz
FEATURES
鈥?Low power CMOS technology
- Write current: 3 mA maximum
- Read current: 500
碌A(chǔ)
typical
- Standby current: 500 nA typical
鈥?2048 x 8 bit organization
鈥?16 byte page
鈥?Write cycle time: 5ms max.
鈥?Self-timed ERASE and WRITE cycles
鈥?Block write protection
- Protect none, 1/4, 1/2, or all of array
鈥?Built-in write protection
- Power on/off data protection circuitry
- Write enable latch
- Write protect pin
鈥?Sequential read
鈥?High reliability
- Endurance: 1M cycles (guaranteed)
- Data retention: > 200 years
- ESD protection: > 4000 V
鈥?8-pin PDIP and SOIC packages
鈥?Temperature ranges supported:
- Commercial (C):
0擄C to +70擄C
- Industrial (I):
-40擄C to +85擄C
- Automotive (E) (25C160):
-40擄C to +125擄C
BLOCK DIAGRAM
Status
Register
HV Generator
EEPROM
I/O Control
Logic
Memory
Control
Logic
X
Dec
Page Latches
Array
SI
SO
CS
SCK
HOLD
WP
Vcc
Vss
Y Decoder
Sense Amp.
R/W Control
DESCRIPTION
The Microchip Technology Inc. 25AA160/25LC160/
25C160 (25xx160
*
) are 16K bit serial Electrically Eras-
able PROMs. The memory is accessed via a simple
Serial Peripheral Interface (SPI) compatible 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.
*25xx160 is used in this document as a generic part number for the 25AA160/25LC160/25C160 devices.
SPI is a trademark of Motorola.
漏
1998 Microchip Technology Inc.
DS21231B-page 1

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