PSD303B-70M STMicroelectronics, PSD303B-70M Datasheet - Page 66

• Manufacturer Part Number: PSD303B-70M
• Description: MCU 8BIT PROGRM 70NS 44-PQFP
• Manufacturer: STMicroelectronics

Specifications of PSD303B-70M

• Applications: *
• Interface: *
• Voltage - Supply: *
• Package / Case: 44-MQFP, 44-PQFP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 39. Port A as AD0–AD7 Timing (Track Mode) Using R/W, E or R/W, DS (PSD3X1)
R/W as R/W
Multiplexed
PAD Inputs
WR/V
RD/E as E
PAD Input
PA0-PA7
See referenced notes on page 64.
A0/AD0-
A7/AD7
Direct
CSOi
or AS
PP
as E
as E
as E
(1,4)
(5,7)
(3,6)
AS
or
2
1
23
STABLE INPUT
2
ADDRESS
ADR OUT
24
3
STABLE INPUT
35
33
READ CYCLE
25
DATA IN
12
DATA VALID
26
32
34
1
23
2
STABLE INPUT
ADDRESS
ADR OUT
STABLE INPUT
24
WRITE CYCLE
3
35
33
28
27
12
WRITTEN
32
32
32
DATA
DATA
OUT
PSD3XX Family
29
34
63