PSD503B1-C-15L View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
PSD503B1-C-15L Datasheet PDF : 153 Pages
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PSD5XX Family
Table 2.
PSD5XX Pin
Descriptions
(Cont.)
10
Pin Name
PE0
PE1
PE2
PE3
PE4
PE5
PE6
PE7
VSTBY
Pin Function
Port PE, pin 0
1. BHE
2. PSEN
3. WRH
4. UDS
5. SIZ0
6. PE0
7. PE0
8. PE0
Port PE, pin 1
1. ALE
2. PE1
3. PE1
4. PE1
Port PE, pin 2
1. Intr Out
2. PE2
3. PE2
4. PE2
Port PE, pin 3
1. Timer0-In
2. PE3
3. PE3
4. PE3
Port PE, pin 4
1. Timer1-In
2. PE4
3. PE4
4. PE4
5. TC0
Port PE, pin 5
1. Timer2-In
2. PE5
3. PE5
4. PE5
5. TC1
Port PE, pin 6
1. Timer3-In
2. PE6
3. PE6
4. PE6
5. TC2
Port PE, pin 7
1. APD CLK
2. PE7
3. PE7
4. PE7
5. TC3
VSTBY
VCC
GND
VCC
GND
Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
I
Function Descriptions
Multiple functions
1. High byte enable, 16 bit data
2. Read program memory, 8031 signal
write high data byte
4. Upper Data Strobe
5. Byte enable, 68300 signal
6. I/O pin
7. ZPLD I/O pin
8. Latched Address Out – A0
Multiple functions
1. Address strobe
2. I/O pin
3. ZPLD I/O pin
4. Latched Address Out – A1
Multiple functions
1. Interrupt Controller Output
2. I/O pin
3. ZPLD I/O pin
4. Latched Address Out – A2
Multiple functions
1. Timer0 control input
2. I/O pin
3. ZPLD I/O pin
4. Latched Address Out – A3
Multiple functions
1. Timer1 control input
2. I/O pin
3. ZPLD I/O pin
4. Latched Address Out – A4
5. Timer0 Terminal Count
Multiple functions
1. Timer2 control input
2. I/O pin
3. ZPLD I/O pin
4. Latched Address Out – A5
5. Timer1 Terminal Count
Multiple functions
1. Timer3 control input
2. I/O pin
3. ZPLD I/O pin
4. Latched Address Out – A6
5. Timer2 Terminal Count
Multiple functions
1. Automatic Power Down Clock Input
2. I/O pin
3. ZPLD I/O pin
4. Latched Address Out – A7
5. Timer3 Terminal Count
SRAM power pin for standby
operation (battery backup)
Chip VCC power pin
Chip ground pin
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