LC5824 查看數據表（PDF） - SANYO -> Panasonic

零件编号

产品描述 (功能)

生产厂家

LC5824

4-Bit Single-Chip Microcontrollers Featuring 4 KB to 8 KB of ROM, 1 Kbit of RAM, and an LCD Driver for Medium Speed Small-Scale Control Applications

SANYO -> Panasonic 

Crystal Oscillator Circuit Options

Option

LC5824, LC5823, LC5822

Circuit type

Notes

Used at 32 kHz

The resistor RD is built into the IC when this

circuit is used at 32 kHz.

Used at 38 kHz

Used at 65 kHz

Input Port Options

Option

Circuit type

Low level hold

transistor

selection

Pull-down resistor

Low level

hold transistor

RES Pin

Option

Pull-up resistor,

pull-down

resistor,

resistors left

open, and level

selections

Circuit type

Pull-up resistor

Pull-down resistor

• The cycle time is 4 times n times the f1

period. (n:2)

• The divider circuit outputs (ø1 through ø15)

are used as the clock time base, the LCD

drive frequency generation clock, and for

S/K port chattering prevention.

• OSC1 is stopped by the execution of a

SLOW instruction.

Bus

SF2/RF2, D2 to D7

Output mode

Notes

When use of the hold transistor is selected, it

is used to minimize the current drain that

flows in the pull-down resistor when a push-

button switch is used with S1 or a slide switch

is used with S2.

• When the input open specifications are

selected, before reading the input, the pull-

down transistor is turned on. Then the input

state is read and the pull-down transistor is

turned off. If the input was in the floating

state, the low level hold transistor operates

to hold the level.

If use of the hold transistor is not selected:

• The circuit is used with the pull-down

transistor turned on.

• Select unused if the external control signal

line connected to this input will never be in

the floating state.

Notes

Internal resistor and polarity selections

• Reset on low, pull-up resistor included

• Reset on high, pull-down resistor included

• Reset on low, no resistors connected

• Reset on high, no resistors connected

No. 5944-11/24

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