参数资料
| 型号： | 23A640T-I/ST |
| 厂商： | Microchip Technology |
| 文件页数： | 3/24页 |
| 文件大小： | 0K |
| 描述： | IC SRAM 64KBIT 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： | 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-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 8-TSSOP |
| 包装： | 带卷 (TR) |
23A640/23K640
TABLE 1-2:
AC CHARACTERISTICS
AC CHARACTERISTICS
Industrial (I):
T A = -40°C to +85°C
Param.
No.
1
Sym.
F CLK
Characteristic
Clock frequency
Min.
—
Max.
16
Units
MHz
Test Conditions
V CC = 1.8V
—
20
MHz
V CC = 3.0V
2
3
4
5
T CSS
T CSH
T CSD
Tsu
CS setup time
CS hold time
CS disable time
Data setup time
32
25
50
50
32
25
10
—
—
—
—
—
—
—
ns
ns
ns
ns
ns
ns
ns
V CC = 1.8V
V CC = 3.0V
V CC = 1.8V
V CC = 3.0V
V CC = 1.8V
V CC = 3.0V
V CC = 1.8V
10
—
ns
V CC = 3.0V
6
7
8
9
10
11
12
13
14
15
16
17
18
T HD
T R
T F
T HI
T LO
T CLD
T V
T HO
T DIS
T HS
T HH
T HZ
T HV
Data hold time
CLK rise time
CLK fall time
Clock high time
Clock low time
Clock delay time
Output valid from clock low
Output hold time
Output disable time
HOLD setup time
HOLD hold time
HOLD low to output High-Z
HOLD high to output valid
10
10
—
—
32
25
32
25
32
25
—
—
0
—
—
10
10
10
—
—
—
2
2
—
—
—
—
—
—
32
25
—
20
20
—
—
—
50
ns
ns
us
us
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
V CC = 1.8V
V CC = 3.0V
Note 1
Note 1
V CC = 1.8V
V CC = 3.0V
V CC = 1.8V
V CC = 3.0V
V CC = 1.8V
V CC = 3.0V
V CC = 1.8V
V CC = 3.0V
Note 1
V CC = 1.8V
V CC = 3.0V
—
—
—
—
Note 1:
This parameter is periodically sampled and not 100% tested.
TABLE 1-3:
AC Waveform:
AC TEST CONDITIONS
Input pulse level
Input rise/fall time
Operating temperature
C L = 100 pF
0.1 V CC to 0.9 V CC
5 ns
-40°C to +85°C
—
Timing Measurement Reference Level:
Input
Output
0.5 V CC
0.5 V CC
? 2009 Microchip Technology Inc.
Preliminary
DS22126B-page 3
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