HD404391 데이터 시트보기 (PDF) - Hitachi -> Renesas Electronics

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HD404391

4-bit microcomputers

Hitachi -> Renesas Electronics 

HD404344R Series/HD404394 Series

AC Characteristics (HD404344R, HD404342R, HD404341R, HD40C4344R, HD40C4342R,

HD40C4341R: VCC = 2.5 to 5.5 V, GND = 0 V, Ta = –20 to +75°C, HCD404344R, HCD40C4344R:

VCC = 2.5 to 5.5 V, GND = 0 V, Ta = +75°C, HD404394, HD404392, HD404391, HD4074344,

HD4074394: VCC = 2.7 to 5.5 V, GND = 0 V, Ta = –20 to +75°C, unless otherwise specified) (cont)

Item

Symbol Pins

Min Typ Max Unit Test Condition Note

Input capacitance

Cin

All input pins

— — 15 pF f = 1 MHz,

except TEST,

Vin = 0 V

Vref and R10–R12

TEST

— — 15 pF f = 1 MHz,

6

Vin = 0 V

— — 40 pF

7

Vref

— — 30 pF

8

R10–R12

— — 15 pF

9

— — 30 pF

10

Notes: 1. The oscillation stabilization time is the period required for the oscillator to stabilize in the

following situations:

a. After VCC reaches the minimum specification value at power-on.

b. After RESET input goes low when stop mode is cancelled.

c. After STOPC input goes low when stop mode is cancelled.

To ensure the oscillation stabilization time at power-on or when stop mode is cancelled, RESET

or STOPC must be input for at least a duration of tRC.

When using a ceramic oscillator, consult with the manufacturer to determine what stabilization

time is required, since it will depend on the circuit constants and stray capacitance.

2. Refer to figure 66.

3. Refer to figure 67.

4. Refer to figure 68.

5. Refer to figure 69.

6. Applies to the HD404341R, HD404342R, HD404344R, HD404391, HD404392, and HD404394.

7. Applies to the HD4074344 and HD4074394.

8. Applies to the HD404394 series.

9. Applies to the HD404344R series.

10. Applies to the HD404394 series and HD4074344.

11. Applies to the HD40C4344R, HD40C4342R, HD404341R

92

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