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PDF SH67N19A Data sheet ( Hoja de datos )
| Número de pieza | SH67N19A | |
| Descripción | 4K 4-bit Microcontroller | |
| Fabricantes | Sino Wealth | |
| Logotipo |  |
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SH67N19A
4K 4-bit Micro-controller with LCD Driver
Features
SH6610C-Based Single-Chip 4-bit Micro-Controller With
LCD Driver
OTP ROM: 4K X 16bits
RAM: 638 X 4bits
- 50 System control register
- 512 Data memory
- 76 LCD RAM
Operation voltage:
- 1.5V mode: VDD = 1.2V - 1.7V
- 3.0V mode: VDD = 2.4V - 3.6V
24 CMOS Bi-directional I/O pads
4-Level stack (Including interrupts)
One 8-bit Auto Re-Loaded Timer/Counter
One 8-bit base timer
Warm-Up Timer
Powerful interrupt sources:
- External interrupts (Rising/falling edge)
- Timer0 interrupt
- Base timer interrupt
- PORTB & PORTC interrupts (Rising/falling edge)
Dual clock sources:
OSC:
- Crystal oscillator: 32.768kHz
- RC oscillator: 32kHz or 131kHz. (Code Option)
OSCX:
- Ceramic oscillator: 455kHz
- RC oscillator: 262kHz or 500kHz (400kHz - 4MHz)
(System Register Option)
Instruction cycle time (4/fOSC)
Two low power operation modes: HALT and STOP
Reset
- Built-in power-on reset (POR)
- Built-in Low voltage reset (LVR) (Code Option)
- Built-in watchdog timer (WDT) (Code Option)
- Reset pad low level/falling edge triggering (Code Option)
LCD Driver:
- 38SEG X 6COM (1/6 duty, 1/3 bias)
- 38SEG X 5COM (1/5 duty, 1/3 bias)
- 38SEG X 4COM (1/4 duty, 1/3 bias)
- 38SEG X 3COM (1/3 duty, 1/2 bias)
Built-in 2-channel Programmable Sound Generator (PSG)
Built-in Alarm Generator
Built-in Electro-luminescent Light (EL-Light) driver
Built-in voltage Doubler and Tripler charge pump circuit
Built-in Resistor To Frequency Converter (RFC)
Bonding option for multi-code software
Single solar supply application
Available in Chip Form, wafer
General Description
SH67N19A is a single-chip 4-bit micro-controller. The device integrates a SH6610C CPU core, 4K OTP ROM, RAM, timer,
PSG, alarm, RFC, EL-light, LCD driver, I/O ports. A dual-oscillator is built in the SH67N19A to enhance the total chip
performance. SH67N19A is suitable for calculator application.
1 V2.0
1 page  
SH67N19A
OTP Programming Pin Description (OTP Program Mode)
Pin No.
18
19
26
24
21
13
Symbol I/O Shared by
Descriptions
VDD
VST
VPP
GND
P
I
P
P
VDD
VST
TEST
GND
Programming Power supply (+5.5V)
Must be connected to VDD
Programming high voltage Power supply (+11V)
Ground
SCK
I
OSCI
Programming Clock input pin
SDA
I/O PORTA.0 Programming Data pin
5
5 Page 
SH67N19A
5. Oscillator Circuit
The oscillator generates the basic clock pulses that provide the system clock to supply CPU and on-chip peripherals.
System clock fSYS = fOSC/4
5.1. Instruction Cycle Time
(1) 4/32.768kHz (≈ 122µs) for 32.768kHz oscillator.
(2) 4/131kHz (≈ 30.53µs) for 131kHz oscillator.
(3) 4/262kHz (≈ 15.27µs) for 262kHz oscillator.
(4) 4/455kHz (≈ 8.79µs) for 455kHz oscillator.
(5) 4/500kHz (= 8µs) for 500kHz oscillator.
(6) 4/4MHz (= 1µs) for 4MHz oscillator.
5.2. Circuit Configuration
SH67N19A has two on-chip oscillation circuits OSC and OSCX.
OSC is a low frequency crystal (Typ.32.768kHz) or RC (Typ.32kHz or 131kHz) oscillator determined by the code option. This is
designed for low frequency operation. OSCX also has two types: ceramic (455kHz) or RC (262kHz or 500kHz or 4MHz)
oscillator determined by the system register. It is designed for high frequency operation.
It is possible to select the high speed CPU processing by a high frequency clock and select low power operation by low
frequency clock. At starting of reset initialization, OSC starts oscillation and OSCX is turned off. Immediately after reset
initialization, the OSC is automatically selected as the system clock input source.
OSCI
Low Frequency
OSCO Clock Oscillator
OSCXI
High Frequency
OSCXO Clock Oscillator
System clock
Source Selector
& Switching control
System clock
Generator
CPU Clock
Figure 1. Oscillator Block Diagram
Figure 2. Timing of System Clock Switching
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet SH67N19A.PDF ] | |
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