4K 4-Bit Microcontroller
SH6614 SH6614B SH6614C
4K 4-Bit Microcontroller with LCD Driver
Features
! SH6610C-based single-chip 4-bit microcontrol...
Description
SH6614 SH6614B SH6614C
4K 4-Bit Microcontroller with LCD Driver
Features
! SH6610C-based single-chip 4-bit microcontroller ! ROM: 4096 X 16 bits ! RAM: 512 X 4 bits ! Operation voltage: 2.4V – 6.0V ! 8 CMOS bi-directional I/O pins ! 4-Level subroutine nesting (include interrupts) ! One 8-bit auto re-load timer/counter ! Wem-up timer for power-on reset ! Powerful interrupt sources:
- External interrupts ( INT0 )
- Internal interrupt (Timer0) - Internal interrupt (Base Timer)
- Port's falling edge interrupt: PORTB ( INT1 ) ! 8-bit Base timer ! LCD driver:
240 dots (1/8 duty 1/4 bias) or 136 dots (1/4 duty 1/3 bias)
! LCD used as scan output ! Built-in dual tone PSG with one noise generator ! 2 Clock sources
OSC: (code option select crystal or RC type)
- Crystal oscillator 32.768K
- RC oscillator: 262K
OSCX: (system register selected ceramic or RC type)
- Ceramic oscillator 455K
- RC oscillator 1.8M or 2M ! Instruction cycle time:
- 122.07µs for 32.768 KHz crystal
- 15.27µs for 262 KHz RC
- 8.79µs for 455KHz ceramic
- 2.22µs for 1.8 MHz RC
- 2µs for 2.0 MHz RC ! Two low power operation modes: HALT and STOP ! Low power consumption
General Description
SH6614 (SH6614B, SH6614C) is a single chip microcontroller integrated with SRAM, timer and dual-tone PSG, LCD driver, and I/O port. This chip builds in a dual-oscillator to enhance the total chip performance.
Pin Configuration
QFP64
R
ET
SSS
PPPPPP
S
E
EEE
A A B B B B V ENNN S V V V VGGG
2
3
0
1
2
3
D D
T
CCC
T
...
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