UPD78F9222MC(T)-5A4-A NEC, UPD78F9222MC(T)-5A4-A Datasheet - Page 54

• Manufacturer Part Number: UPD78F9222MC(T)-5A4-A
• Description: 8BIT MCU, 4K FLASH, 256B RAM, 78F9222
• Manufacturer: NEC

Specifications of UPD78F9222MC(T)-5A4-A

• Controller Family/series: UPD78
• No. Of I/o's: 17
• Ram Memory Size: 256Byte
• Cpu Speed: 10MHz
• No. Of Timers: 4
• No. Of: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 4KB
• Oscillator Type: External, Internal

54
P3:
PU3:
PM3:
RD:
WR××: Write signal
WR
WR
WR
RD
PORT
PM
PU
Port register 3
Pull-up resistor option register 3
Port mode register 3
Read signal
Output latch
Alternate
Alternate
function
function
PM31
PU31
(P31)
PM3
PU3
P3
Figure 4-4. Block Diagram of P31
CHAPTER 4 PORT FUNCTIONS
User’s Manual U16898EJ5V0UD
V
DD
P-ch
P31/TI010/TO00/INTP2