ZPSD311-B-90UI View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ZPSD311-B-90UI

Low Cost Field Programmable Microcontroller Peripherals

STMicroelectronics 

PSD3XX Family

Figure 32. Timing of 16-Bit Non-Multiplexed Address/Data Bus Using RD, WR (PSD3X1)

CSI/A19

as CSI

READ CYCLE

32

7

WRITE CYCLE

32

15

Direct (1)

PAD Input

STABLE INPUT

STABLE INPUT

6

14

A0/AD0-

A15/AD15

as A0-A15

t(s) PC0-PC2,

CSI/A19 as

c Multiplexed

u Inputs

rod ) BHE/PSEN

P t(s as BHE

lete duc PA0-PA7

so ro (Low Byte)

) - Ob lete P PB0-PB7

t(s o (High Byte)

s 2

uc Ob Active High

d - ALE

1

Pro t(s) Active Low

te c ALE

sole rodu RD/E as RD

Ob te P WR/VPP or

Obsole R/W as WR

STABLE INPUT

32

6

DATA VALID

9

DATA VALID

3

9

2

10

4

8

12

1

13

STABLE INPUT

32

14

DATA

IN

17

3

16 DATA

IN

11

36

13

12A

See referenced notes on page 64.

56

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