UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 26

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

2.1 Pin Function List
power supplies and the pins is shown below.
(1)
26
P00
P01
P05
P06
P10
P11
P12
P13
P14
P15
P16
P17
P30
P31
P32
P33
P40 to P43
There are three types of pin I/O buffer power supplies: AV
This section explains the names and functions of the pins of the 78K0/FE2.
Pin Name
Port pins
I/O
I/O
I/O
I/O
I/O
AV
EV
V
Power Supply
DD
REF
DD
Port 0.
4-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting.
Port 1.
8-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting.
Port 3.
4-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting.
Port 4.
4-bit I/O port.
Input/output can be specified in 1-bit units.
Use of an on-chip pull-up resistor can be specified by a
software setting.
Table 2-1. Pin I/O Buffer Power Supplies
P80 to P87, P90 to P93
Port pins other than P80 to P87, P90 to P93 and P121 to P124
• P121 to P124
• Non-port pins
CHAPTER 2 PIN FUNCTIONS
Table 2-2. Port pins (1/2)
User’s Manual U17554EJ4V0UD
Function
Corresponding Pins
REF
, EV
DD
, and V
DD
. The relationship between these
Input
Input
Input
Input
After Reset
TI000
TI010/TO00
SSI11/TI001
TI011/TO01
SCK10/TxD61
SI10/RxD61
SO10
TxD60
RxD60
TOH0
TOH1/INTP5
TI50/TO50
INTP1
INTP2/TI002
INTP3/TI012/TO02
INTP4/TI51/TO51
Alternate Function
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