PSD4242F3-20UI 查看數據表（PDF） - STMicroelectronics

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PSD4242F3-20UI

Flash In-System Programmable (ISP) Peripherals For 16-bit MCUs (5V Supply)

STMicroelectronics 

Figure 44. Read Timing

ALE /AS

A/D

MULTIPLEXED

BUS

ADDRESS

NON-MULTIPLEXED

BUS

DATA

NON-MULTIPLEXED

BUS

CSI

RD

(PSEN, DS)

tAVLX

tLXAX1

tLVLX

ADDRESS

VALID

tAVQV

ADDRESS

VALID

tSLQV

tRLQV

tRLRH

PSD4235G2

DATA

VALID

DATA

VALID

tRHQX

tRHQZ

E

R/W

tAVPV

tTHEH

tEHEL

tELTL

ADDRESS OUT

Note: 1. tAVLX and tLXAX are not required for 80C251 in Page Mode or 80C51XA in Burst Mode.

AI02895

77/89

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