参数资料
型号: 23A640-I/SN
厂商: Microchip Technology
文件页数: 11/24页
文件大小: 0K
描述: IC SRAM 64KBIT 20MHZ 8SOIC
产品培训模块: 23x640 and 23x256 SRAM Overview
标准包装: 100
格式 - 存储器: RAM
存储器类型: SRAM
存储容量: 64K (8K x 8)
速度: 20MHz
接口: SPI 串行
电源电压: 1.7 V ~ 1.95 V
工作温度: -40°C ~ 85°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOICN
包装: 管件
产品目录页面: 1442 (CN2011-ZH PDF)
23A640/23K640
2.6
Write Status Register Instruction
( WRSR )
The Write Status Register instruction ( WRSR ) allows the
user to write to the bits in the STATUS register as
shown in Table 2-2. This allows for setting of the Device
operating mode. Several of the bits in the STATUS
register must be cleared to ‘ 0 ’. See Figure 2-8 for the
WRSR timing sequence.
FIGURE 2-8:
CS
WRITE STATUS REGISTER TIMING SEQUENCE ( WRSR )
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
SCK
Instruction
Data to STATUS Register
SI
0
0
0
0
0
0
0
1
7
6
5
4
3
2
1
0
High-Impedance
SO
2.7
Power-On State
The 23X640 powers on in the following state:
? The device is in low-power Standby mode
(CS = 1 )
? A high-to-low-level transition on CS is required to
enter active state
? 2009 Microchip Technology Inc.
Preliminary
DS22126B-page 11
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