Download the CTM8B55E datasheet PDF.
This datasheet also covers the CTM8B54E variant, as both devices belong to the same (ctm8b54e - ctm8b57e) eprom-based 8-bit coms microcontroller family and are provided as variant models within a single manufacturer datasheet.
General Description
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.
Key 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: 2.3V ~ 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,.
Full PDF Text Transcription for CTM8B55E (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
CTM8B55E. For precise diagrams, and layout, please refer to the original PDF.
www.DataSheet4U.com CTM8B54E/55E/56E/57E EPROM-Based 8-Bit CMOS Microcontroller FEATURES • Total of 33 single word instructions . • The fast execution time may be 200ns f...
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33 single word instructions . • The fast execution time may be 200ns for all single cycle instructions under 20MHz operating. • Operating voltage range: 2.3V ~ 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. • Slee
CTM8B55E Datasheet
