MC908JL8CDWE Datasheet, PDF (18/212 Pages) Freescale Semiconductor, Inc – Microcontrollers

General Description
– 11 LED drivers (sink)
– 2 × 25mA open-drain I/O with pull-up
• Resident routines for in-circuit programming and EEPROM emulation
• System protection features:
– Optional computer operating properly (COP) reset, driven by internal RC oscillator
– Optional low-voltage detection with reset and selectable trip points for 3V and 5V operation
– Illegal opcode detection with reset
– Illegal address detection with reset
• Master reset pin with internal pull-up and power-on reset
• IRQ with schmitt-trigger input and programmable pull-up
• 20-pin dual in-line package (PDIP), 20-pin small outline integrated package (SOIC), 28-pin PDIP,
28-pin SOIC, 32-pin shrink dual in-line package (SDIP), and 32-pin low-profile quad flat pack
(LQFP)
• Specific features of the MC68HC908JL8 in 28-pin packages are:
– 23 general-purpose I/Os only
– 7 keyboard interrupt with internal pull-up
– 10 LED drivers (sink)
– 12-channel ADC
– Timer I/O pins on TIM1 only
• Specific features of the MC68HC908JL8 in 20-pin packages are:
– 15 general-purpose I/Os only
– 1 keyboard interrupt with internal pull-up
– 4 LED drivers (sink)
– 10-channel ADC
– Timer I/O pins on TIM1 only
Features of the CPU08 include the following:
• Enhanced HC05 programming model
• Extensive loop control functions
• 16 addressing modes (eight more than the HC05)
• 16-bit index register and stack pointer
• Memory-to-memory data transfers
• Fast 8 × 8 multiply instruction
• Fast 16/8 divide instruction
• Binary-coded decimal (BCD) instructions
• Optimization for controller applications
• Efficient C language support
1.3 MCU Block Diagram
Figure 1-1 shows the structure of the MC68HC908JL8.
MC68HC908JL8/JK8 • MC68HC08JL8/JK8 • MC68HC908KL8 Data Sheet, Rev. 3.1
18
Freescale Semiconductor