CTM8B57EP
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Manufacturer Part#:

CTM8B57EP

Product Category: IC Chips
Manufacturer: CERAMATE
Description:
  datasheetCTM8B57EP Datasheet
Package: SOP28
Quantity: 7392 PCS
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
Moisture Sensitivity Level(MSL): 3(168 Hours)
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Manufacturer: CERAMATE
Product Category: IC Chips
Features, Applications

FEATURES

Total of 33 single word instructions. The fast execution time may be 200ns for all single cycle instructions under 20MHz operating. Operating voltage range: 6.5V 8-bit data bus. 14-bit instruction word. Four-level stacks. On chip EPROM size : 512x14 bits for CTM8B54E/55E, 1Kx14 bits for CTM8B56E, 2Kx14 bits for CTM8B57E. Internal RAM size : 25 bytes for CTM8B54E/56E, 24 bytes for CTM8B55E, 72 bytes for CTM8B57E. Direct and indirect addressing modes for data accessing 8-bit real time clock/counter with 8-bit programmable prescaler. Internal power-on Reset. Device Reset Timer. Code protection. Sleep mode for power saving. On chip Watchdog Timer(WDT) based on internal RC oscillator. Three I/O ports PA, PB nad PC with independent direction control. 4 types of oscillator can be selected by code options: RC : Low-cost RC oscillator - XTAL : Standard crystal oscillator - HFXTAL : High frequency crystal oscillator - LFXTAL : Low frequency crystal oscillator


CTM8B5X series is an EPROM based 8-bit microcontroller which employs a full CMOS technology enhanced with low-cost, high speed and high noise immunity. Watchdog Timer, RAM, EPROM, tri-state I/O port, power down mode, and real time programmable clock/counter are integrated into this chip. CTM8B5X contains 33 instructions, all are single cycle except for program branches which take two cycles. On chip memory is available with 512x14 bits of EPROM for CTM8B54E/55E, 1Kx14 bits of EPROM for CTM8B56E, 2Kx14 bits of EPROM for CTM8B57E and to 72 bytes of static RAM.


* All specs and applications shown above subject to change without prior notice. NO.66 SEC.2 NAN-KAN RD., LUCHU , TAOYUAN, TAIWAN, R.O.C Email: server@ceramate.com.tw Tel:886-3-3529445 Http: www.ceramate.com.tw Page of 23 Rev 1.1 Dec 26,2001 Fax:886-3-3521052


Descriptions 

RC type: Input pin of RC oscillator XTAL type: Input terminal of crystal oscillator RC type: OSCO outputs with 1/4 frequency of OSCI to denotes the cycle rate for instruction. XTAL type: Output terminal of crystal oscillator


Input pin of real time counter/clock. Must be tied to Vss or Vdd if not in use. Input pin for device reset or high voltage programming input for EPROM. If this pin is low, the device is reset.


In programmimg mode, this pin is connected 12V. In normal operating mode, this pin must not exceed Vdd to avoid entering unintended programming mode. PA0~PA3 as bi-directional I/O port PB0~PB7 as bi-directional I/O port PC0~PC7 as bi-directional I/O port Power supply Ground


* All specs and applications shown above subject to change without prior notice. NO.66 SEC.2 NAN-KAN RD., LUCHU , TAOYUAN, TAIWAN, R.O.C Email: server@ceramate.com.tw Tel:886-3-3529445 Http: www.ceramate.com.tw Page of 23 Rev 1.1 Dec 26,2001 Fax:886-3-3521052


EPROM-Based 8-Bit CMOS Microcontroller 3.0 FUNCTIONAL DESCRIPTIONS 3.1 REGISTER MAP

The register map CTM8B5X is depicted as below:. The Register Map of CTM8B54E/56E Address 06h 07h-1Fh Description Indirect Addressing Register Timer0 PC STATUS FSR PORTA PORTB General Purpose Register The Register Map of CTM8B55E Address 07h 08h-1Fh The Register Map of CTM8B57E Address 07h 08h~0Fh Bank 0 Indirect Addressing Register Timer0 PC STATUS FSR PORTA PORTB PORTC General Purpose Register 10h~1Fh General Purpose Register 30h~3Fh General Purpose Register 50h~5Fh General Purpose Register 70h~7Fh General Purpose Register Map back to address in Bank 0 Bank 1 Description Bank 2 10 Bank 3 11 Description Indirect Addressing Register Timer0 PC STATUS FSR PORTA PORTB PORTC General Purpose Register

Search Part number : "CTM8B" Included word is 3
Part Number Manufacturer Package Quantity Description
CTM8B56EN PRONICS DIP-18 3295
CTM8B56EP CERAMATE SOP18 2430
CTM8B57EN FHNHC DIP 3220
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