UPD17243 datasheet(13/104 Pages) RENESAS

13 / 104 page

Data Sheet U15002EJ1V1DS

µPD17240, 17241, 17242, 17243, 17244, 17245, 17246

1.1

Pin Function List (3/3)

Pin No.

Pin Name

Function

Output Format

After Reset

P1A0

These pins constitute a 3-bit I/O port that can be set to the input or

When key

CMOS input

P1A1

output mode in 1-bit units.

matrix is

(when key

P1A2

If this port is set to the input mode when a key matrix is used, it

used: N-ch

matrix is not

functions as a CMOS input port and can be used to input key

open-drain,

used and

return signals. At this time, whether a pull-up/down resistor is

when key

no resistor

connected to this port and the standby mode release condition

matrix is not

connected)

(whether it is released when this pin is high or low) can be

used: CMOS

selected in 1-bit units

push-pull.

1. If connection of a resistor is specified and if it is specified that

the standby mode is released when this port goes low

... A pull-up resistor is connected. If a low level is input to

the set key, the standby mode is released.

2. If connection of a resistor is specified and if it is specified that

the standby mode is released when this port goes high

... A pull-down resistor is connected. If a high level is input

to the set key, the standby mode is released.

3. If connection of a resistor is not specified and if it is specified

that the standby mode is released when this port goes low

(or high)

... No resistor is connected. If a low (or high) level is input to

the set key, the standby mode is released.

If this port is set to the output mode when a key matrix is used, it

functions as an N-ch open-drain output port and can be used to

output key matrix signals.

If this port is set to the input mode when a key matrix is used, it

functions as a CMOS input port.

Connection of a resistor to this port and whether the resistor is

pull-up or pull-down can be selected in 1-bit units.

If this port is set in the output mode when a key matrix is not used,

it functions as a high-current CMOS output port.

P0A0

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

–

CMOS input

P0A1

They can be used to input the key return signals of a key matrix.

with pull-up

P0A2

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

resistor

P0A3

P0B0

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

N-ch

CMOS input

P0B1

output mode in 1-bit units.

open drain

with pull-up

P0B2

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

resistor

P0B3

resistor, and can be used to input the key return signals 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 to output the key return signals of a key matrix.

P0C0

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

N-ch

Low-level

P0C1

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

open drain

output

P0C2

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

P0C3

resistor, and can be used to input the key return signals 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 to output the key return signals of a key matrix.

UPD17243 Datasheet(PDF) 13 Page - Renesas Technology Corp

UPD17243 Datasheet(HTML) 13 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL