参数资料
型号: WS57C45-35TMB
厂商: STMICROELECTRONICS
元件分类: PROM
英文描述: 2K X 8 UVPROM, 15 ns, CDIP24
封装: 0.300 INCH, CERDIP-24
文件页数: 7/9页
文件大小: 78K
代理商: WS57C45-35TMB
WS57C45
2-27
PROGRAM
VERIFY
DATA IN
DATA OUT
PROGRAM
OTHER BYTES
ADDRESS
DATA
CP/PGM
INIT/VPP
(OE /OES)/VFY
t AS
t DV
t DS
VIH
VIL
VPP
VIL
VIH
t AS
t R
t F
t DH
t DZ
t PW
t DV
t VP
t AH
ADDRESS STABLE
FIGURE 5. PROM PROGRAMMING WAVEFORMS
DATA IN
PROGRAM
CP/PGM
VIH
VIL
VPP
DATA
VIH
VIL
tAH
tDH
tF
tDS
tAS
VPP
VIH
VIL
A2
A1
tR
tPW
INIT/VPP
FIGURE 6. INITIAL BYTE PROGRAMMING WAVEFORMS
CP/PGM
(OE /OES)/ VFY
t AS
t PW
VIH
A1
A2
VPP
tAS
VPP
VIH
tR
tF
VIL
t AH
INIT/VPP
FIGURE 7. PROGRAM SYNCHRONOUS ENABLE
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