UPD78F9234MC-5A4-A Renesas Electronics America, UPD78F9234MC-5A4-A Datasheet - Page 58
UPD78F9234MC-5A4-A
Manufacturer Part Number
UPD78F9234MC-5A4-A
Description
MCU 8BIT 8KB FLASH 30PIN
Manufacturer
Renesas Electronics America
Series
78K0S/Kx1+r
Datasheet
1.UPD78F9232MC-5A4-A.pdf
(419 pages)
Specifications of UPD78F9234MC-5A4-A
Core Processor
78K0S
Core Size
8-Bit
Speed
10MHz
Connectivity
LIN, UART/USART
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
24
Program Memory Size
8KB (8K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD78F9234MC-5A4-A
Manufacturer:
MAXIM
Quantity:
1 001
Part Number:
UPD78F9234MC-5A4-A
Manufacturer:
NEC
Quantity:
20 000
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4.2.2
port mode register 2 (PM2). When the P20 to P23 pins are used as an input port, an on-chip pull-up resistor can be
connected in 1-bit units by using pull-up resistor option register 2 (PU2).
56
Port 2 is a 4-bit I/O port with an output latch. Each bit of this port can be set to the input or output mode by using
This port is also used as the analog input pins of the internal A/D converter.
Generation of reset signal sets port 2 to the input mode.
Figure 4-2 shows the block diagram of port 2.
Port 2
PU2:
P2:
PM2:
PMC2: Port mode control register 2
RD:
WR
WR
WR
WR
WR
RD
PORT
PMC
PM
PU
: Write signal
Pull-up resistor option register 2
Port register 2
Port mode register 2
Read signal
PMC20 to PMC23
PM20 to PM23
PU20 to PU23
(P20 to P23)
Output latch
A/D converter
PMC2
PM2
PU2
P2
Figure 4-3. Block Diagram of P20 to P23
CHAPTER 4 PORT FUNCTIONS
User’s Manual U17446EJ5V0UD
V
DD
P-ch
P20/ANI0 to P23/ANI3
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