E202075_HD404889 Datasheet, PDF (181/202 Pages) Renesas Technology Corp – Low-Voltage AS Microcomputers with On-Chip LCD Circuit

HD404889/HD404899/HD404878/HD404868 Series
Item
Symbol Pins
min.
typ. max. Unit Test Conditions
Watch mode
l_WTC1 V_CC
current dissipation
—
15 30
µA V_CC = 3 V, LCD on,
32 kHz oscillator used
l_WTC2 V_CC
—
58
µA V_CC = 3 V, LCD off,
32 kHz oscillator used
Stop mode current l_STOP V_CC
dissipation
—
—5
µA V_CC = 3 V, no 32 kHz
oscillator
Stop mode
V_STOP V_CC
retention voltage
1.5
——
V no 32 kHz oscillator
Notes: 1. Excludes output buffer current.
2. Power supply current when the MCU is in the reset state and there are no I/O currents.
Notes
4,5
5
5
6
Test Conditions MCU State
Pin States
• Reset state
• RESET, TEST: At ground
3. Power supply current when the on-chip timers are operating and there are no I/O currents.
Test Conditions MCU State
Pin States
• I/O: Same as reset state
• Standby mode
• f_cyc = f_OSC/4
• RESET: At V_CC
• TEST: At ground
• D₀ to D₁₁, R₀ to R₈: At V_CC
4. Applies when the LCD power supply dividing resistor is connected.
5. Power supply current when there are no I/O currents.
Test Conditions Pin States
• RESET: At V_CC
• TEST: At ground
• D₀ to D₁₁, R₀ to R₈: At V_CC
6. Voltage needed to retain RAM data.
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