UPD17236MC View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD17236MC

4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER

NEC => Renesas Technology 

µPD17230, 17231, 17232, 17233, 17234, 17235, 17236

1. PIN FUNCTIONS

1.1 Pin Function List (1/2)

Pin No.

27 (28)

28 (29)

1 (1)

2 (2)

Symbol

P0D0

P0D1

P0D2

P0D3

3 (3)

INT

4 (4)

5 (5)

6 (6)

7 (7)

8 (8)

9 (9)

10 (10)

11 (11)

12 (12)

13 (13)

P0E0

P0E1

P0E2

P0E3

REM

VDD

XOUT

XIN

GND

RESET

14 (14)

P1A0

15 (16)

16 (17)

17 (18)

18 (19)

19 (20)

20 (21)

21 (22)

22 (23)

P0A0

P0A1

P0A2

P0A3

P0B0

P0B1

P0B2

P0B3

Function

Output Form On Reset

These pins constitute a 4-bit I/O port which can be set in the input

or output mode in 4-bit units (group I/O).

In the input mode, these pins serve as CMOS input pins with a

pull-up resistor, and can be used as key return input lines of a key

matrix. The standby status must be released when at least one of

the input lines goes low. In the output mode, these pins are used

as N-ch open-drain output pins and can be used as the output

lines of a key matrix.

N-ch

open-drain

Low-level

output

External interrupt request signal. This signal releases the standby

–

status if an external interrupt request signal is input to it when the

INT pin interrupt enable flag (IP) is set.

Input

These pins constitute a 4-bit I/O port that can be set in the input or

output mode in 1-bit units.

In the output mode, this port functions as a high current CMOS

output port. In the input mode, function as CMOS input and can be

specified to connect pull-up resistor by program.

CMOS

push-pull

Input

Outputs transfer signal for infrared remote controller.

Active-high output.

CMOS

push-pull

Low-level

output

Power supply

–

–

Connects ceramic resonator for system clock oscillation

–

(Oscillation

stops)

Ground

–

–

Turns ON pull down resistor if POC or watchdog timer overflows

–

and if the stack pointer overflows or underflows, and resets the

system. Usually, the pull-down resistor is ON.

Input

This can be set in the input or output mode by mask option.

In the input mode, it serves as a CMOS input pin. However, it

cannot release the STOP mode.

In the output mode, this pin functions as an N-ch open-drain output

pin and can be used as an output line for a key matrix.

–

(Input)

N-ch

open-drain

(Output)

Input

High-

impedance

output

These pins are CMOS input pins with a 4-bit pull-up resistor.

–

They can be used as the key return input lines of a key matrix.

If any one of these pins goes low, the standby status is released.

Input

These pins constitute a 4-bit I/O port that can be set in the input or

output mode in 1-bit units.

In the input mode, these pins are CMOS input pins with a pull-up

resistor, and can be used as the key return input lines of a key

matrix. The standby status is released when at least one of these

pins goes low.

In the output mode, they serve as N-ch open-drain output pins and

can be used as the output lines of a key matrix.

N-ch

open-drain

Input

Remark The number in parenthesis in the Pin No. column indicates the pin numbers of the 30-pin plastic SSOP.

8

Data Sheet U14360EJ1V0DS00

Share Link: