23A256/23K256
256K SPI Bus Low-Power Serial SRAM
Device Selection Table
Part Number
23K256
23A256
V CC Range
2.7-3.6V
1.5-1.95V
Page Size
32 Byte
32 Byte
Temp. Ranges
I, E
I
Packages
P, SN, ST
P, SN, ST
Features:
? Max. Clock 20 MHz
? Low-Power CMOS Technology:
- Read Current: 3 mA at 1 MHz
- Standby Current: 4 ? A Max. at +85°C
? 32,768 x 8-bit Organization
? 32-Byte Page
? HOLD pin
? Flexible Operating modes:
- Byte read and write
- Page mode (32 Byte Page)
- Sequential mode
? Sequential Read/Write
? High Reliability
? Temperature Ranges Supported:
Description:
The Microchip Technology Inc. 23X256 are 256 Kbit
Serial SRAM devices. 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,
transitions on its inputs will be ignored, with the
exception of Chip Select, allowing the host to service
higher priority interrupts.
The 23X256 is available in standard packages
including 8-lead PDIP and SOIC, and advanced
packaging including 8-lead TSSOP.
- Industrial (I):
- Automotive (E):
-40 ? C to +85 ? C
-40 ? C to +125 ? C
Package Types (not to scale)
? Pb-Free and RoHS Compliant, Halogen Free
Pin Function Table
Name
Function
CS
SO
Chip Select Input
Serial Data Output
PDIP/SOIC/TSSOP
(P, SN, ST)
V SS
SI
SCK
HOLD
V CC
Ground
Serial Data Input
Serial Clock Input
Hold Input
Supply Voltage
CS
SO
NC
V SS
1
2
3
4
8
7
6
5
V CC
HOLD
SCK
SI
? 2008-2011 Microchip Technology Inc.
DS22100F-page 1
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相关代理商/技术参数
23K256T-I/P 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:256K SPI Bus Low-Power Serial SRAM
23K256T-I/SN 功能描述:静态随机存取存储器 256K 32K X 8 2.7V SERIAL 静态随机存取存储器 IND RoHS:否 制造商:Cypress Semiconductor 存储容量:16 Mbit 组织:1 M x 16 访问时间:55 ns 电源电压-最大:3.6 V 电源电压-最小:2.2 V 最大工作电流:22 uA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:TSOP-48 封装:Tray
23K256T-I/ST 功能描述:静态随机存取存储器 256K 32K X 8 2.7V SERIAL 静态随机存取存储器 IND RoHS:否 制造商:Cypress Semiconductor 存储容量:16 Mbit 组织:1 M x 16 访问时间:55 ns 电源电压-最大:3.6 V 电源电压-最小:2.2 V 最大工作电流:22 uA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:TSOP-48 封装:Tray
23K3577 制造商:Distributed By MCM 功能描述:CAPACITOR 16V 10000UF 105C HI TEMP,RADIAL18D X 35.5L MM
23K3638 制造商:Distributed By MCM 功能描述:CAPACITOR 35V 47UF 105CHIGH TEMP,RADIAL (5D X 11L MM)
23K640 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:64K SPI Bus Low-Power Serial SRAM
23K640-E/P 功能描述:静态随机存取存储器 64K 8K X 8 2.7V SERIAL 静态随机存取存储器 EXT RoHS:否 制造商:Cypress Semiconductor 存储容量:16 Mbit 组织:1 M x 16 访问时间:55 ns 电源电压-最大:3.6 V 电源电压-最小:2.2 V 最大工作电流:22 uA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:TSOP-48 封装:Tray
23K640-E/SN 功能描述:静态随机存取存储器 64K 8K X 8 2.7V SERIAL 静态随机存取存储器 EXT RoHS:否 制造商:Cypress Semiconductor 存储容量:16 Mbit 组织:1 M x 16 访问时间:55 ns 电源电压-最大:3.6 V 电源电压-最小:2.2 V 最大工作电流:22 uA 最大工作温度:+ 85 C 最小工作温度:- 40 C 安装风格:SMD/SMT 封装 / 箱体:TSOP-48 封装:Tray