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參數資料
| 型號： | 25C320 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 32K 5.0V SPI Bus Serial EEPROM |
| 中文描述： | 32K的5.0V SPI總線串行EEPROM |
| 文件頁數： | 1/12頁 |
| 文件大小： | 86K |
| 代理商： | 25C320 |
1996 Microchip Technology Inc.
Preliminary
DS21159B-page 1
FEATURES
SPI modes 0,0 and 1,1
3.0 MHz Clock Rate
Single 5V Supply
Low Power CMOS Technology
- Max Write Current: 5 mA
- Read Current: 1.0 mA at 5.5V, 3MHz
- Standby Current: 1
4096 x 8 Organization
32 Byte Page
Sequential Read
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
High Reliability
- Endurance: 1M cycles (guaranteed)
- Data Retention: >200 years
- ESD protection: >4000V
8-pin PDIP/SOIC, 14-pin TSSOP
Temperature ranges supported
- Commercial (C):
- Industrial (I):
- Automotive (E):
μ
A typical
DESCRIPTION
The Microchip Technology Inc. 25C320 is a 32K-bit
serial Electrically Erasable PROM (EEPROM). 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, allowing any
number of devices to share the same bus.
There are two other inputs that provide the end user
with additional flexibility. Communication to the device
can be paused via the hold pin (HOLD). While the
device is paused, transitions on its inputs will be
ignored, with the exception of chip select, allowing the
host to service higher priority interrupts. Also write
operations to the Status Register can be disabled via
the write protect pin (WP).
0
°
°
°
C to
C to
C to +125
+70
+85
°
°
°
C
C
C
-40
-40
PACKAGE TYPES
DIP/SOIC
BLOCK DIAGRAM
2
CS
SO
WP
V
SS
1
2
3
4
8
7
6
5
V
CC
HOLD
SCK
SI
2
14
13
12
11
10
9
8
V
HOLD
NC
NC
NC
SCK
SI
1
2
3
4
5
6
7
CS
SO
NC
NC
NC
WP
V
SS
TSSOP
SI
SO
SCK
CS
HOLD
WP
Status
Register
I/O Control
Logic
Memory
Control
Logic
X
Dec
HV Generator
EEPROM
Array
Page Latches
Y Decoder
Sense Amp.
R/W Control
Vcc
Vss
25C320
32K 5.0V SPI
Bus Serial EEPROM
SPI is a trademark of Motorola.
This document was created with FrameMaker 4 0 4
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 25C320/P | 功能描述:電可擦除可編程只讀存儲器 4kx8 5V RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數據保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| 25C320-/P | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SPI Serial EEPROM |
| 25C320/SN | 功能描述:電可擦除可編程只讀存儲器 4kx8 5V RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數據保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| 25C320-/SN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SPI Serial EEPROM |
| 25C320/SN | 制造商:Microchip Technology Inc 功能描述:SERIAL EEPROM IC |
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