(China (Mainland))
Product Summary
The HD404899HA57 is a low-voltage, 4-bit single-chip microcomputer with a variety of on-chip supporting functions that include an LCD circuit, A/D converter, multifunctional timers, and large-current I/O pins. The HD404899HA57 is suitable for system and display panel control in a wide range of applications, including pagers, remote controllers, and home appliances equipped with an LCD display. The HD404899HA57 low-voltage, 4-bit single-chip microcomputers with no on-chip A/D converter. Each series is equipped with a 32.768 kHz sub-resonator for realtime clock use, providing a time counting facility, and a variety of low-power modes to reduce current drain.
Parametrics
HD404899HA57 absolute maximum ratings: (1)Power supply voltage VCC: -0.3 to +7.0 V; (2)Programming voltage VPP: -0.3 to +14.0 V; (3)Pin voltage VT: -0.3 to VCC+0.3 V; (4)Allowable input current (total)Σl0: 100 mA; (5)Allowable output current (total)-Σ l0: 50 mA; (6)Allowable input current (per pin)l0: 4 mA, 30 mA; (7)Allowable output current (per pin)-l0: 4 mA, 20 mA; (8)Operating temperature Topr: -20 to +75 ℃; (9)Storage temperature Tstg: -55 to +125 ℃.
Features
HD404899HA57 features: (1)8-bit input capture circuit (HD404889/HD404899/HD404878 Series); (2)Two timer outputs (including PWM out-put); (3)Two event counter inputs (edge-programmable)(HD404889/HD404899/HD404878 Series)One event counter input (edge-programmable)(HD404868 Series); (4)Clock-synchronous 8-bit serial interface; (5)Subroutine stack up to 16 levels, including interrupts; (6)Four Low-power dissipation modes; (7)Module standby (timers, serial interface, A/D converter); (8)System clock division software switching (1/4 or 1/32); (9)Inputs for return from stop mode (wakeup): 4; (10)Instruction execution time Min. 0.89 μs (fOSC = 4.5 MHz); (11)Operation voltage 1.8 V to 5.5 V.
Diagrams
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