HD404849 Datasheet, PDF (115/125 Pages) Hitachi Semiconductor – 4-Bit Single-Chip Microcomputer

HD404849 Series
Item
Symbol Pin(s)
Min
Typ Max Unit Test Condition Notes
Current
I _SUB
V_CC
dissipation in
subactive
mode
—
25 50
µA V_CC = 3.0 V, LCD on 4, 7, 8
Current
I _WTC1
V_CC
dissipation in
watch mode
—
35 70
µA V_CC = 3.0 V, LCD on 5, 7, 8
—
70 150 µA V_CC = 3.0 V, LCD on 6, 7, 8
—
15 40
µA V_CC = 3.0 V, LCD on 8
I _WTC2
V_CC
Current
I _STOP
V_CC
dissipation in
stop mode
—
5 10
µA V_CC = 3.0 V, LCD off 8
—
—5
µA V_CC = 3.0 V
8
no 32-kHz oscillator
Stop mode V_STOP
V_CC
retaining
voltage
1.5
——
V No 32-kHz oscillator 9
Notes: 1. Output buffer current is excluded.
2. I_CC1 and I_CC2 are the source currents when no I/O current is flowing while the MCU is in reset
state.
Test conditions: MCU: Reset
Pins: RESET and TEST at GND
3. I_SBY1 and I_SBY2 are the source currents when no I/O current is flowing while the MCU timer is
operating.
Test conditions: MCU: I/O reset
Standby mode
Pins: RESET at V_CC
TEST at GND
D₀–D₈, D₁₀, D₁₁, R0–R3, R6, R7 at V_CC
4. Applies to HD404848.
5. Applies to HD4048412 and HD404849.
6. Applies to HD4074849.
7. When the LCD power supply division resistor is connected (LCR3 = 0).
8. These are the source currents when no I/O current is flowing.
Test conditions: Pins: RESET at V_CC
TEST at GND
D₀–D₈, D₁₀, D₁₁, R0–R3, R6, R7 at V_CC
9. Test condition voltage necessary for RAM data retention.
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