参数资料
型号: 23A256T-I/ST
厂商: Microchip Technology
文件页数: 7/28页
文件大小: 0K
描述: IC SRAM 256KBIT 20MHZ 8TSSOP
产品培训模块: 23x640 and 23x256 SRAM Overview
标准包装: 2,500
格式 - 存储器: RAM
存储器类型: SRAM
存储容量: 256K (32K 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-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 8-TSSOP
包装: 带卷 (TR)
23A256/23K256
TABLE 2-1:
INSTRUCTION SET
Instruction Name
READ
WRITE
RDSR
WRSR
Instruction Format
0000 0011
0000 0010
0000 0101
0000 0001
Description
Read data from memory array beginning at selected address
Write data to memory array beginning at selected address
Read STATUS register
Write STATUS register
FIGURE 2-1:
CS
BYTE READ SEQUENCE
0
1
2
3
4
5
6
7
8
9 10 1 1
2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1
SCK
Instruction
16-bit Address
SI
0
0
0
0
0
0
1
1 15 14 13 12
2
1
0
High-Impedance
Data Out
SO
7
6
5
4
3
2
1
0
FIGURE 2-2:
CS
BYTE WRITE SEQUENCE
0
1
2
3
4
5
6
7
8
9 1 0 1 1
2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0 3 1
SCK
Instruction
16-bit Address
Data Byte
SI
0
0
0
0
0
0
1
0 15 14 13 12
2
1
0
7
6
5
4
3
2
1
0
High-Impedance
SO
? 2008-2011 Microchip Technology Inc.
DS22100F-page 7
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