MCHC705JJ7CPE Freescale Semiconductor, MCHC705JJ7CPE Datasheet - Page 13

• Manufacturer Part Number: MCHC705JJ7CPE
• Description: IC MCU 8BIT 224 BYTES RAM 20PDIP
• Manufacturer: Freescale Semiconductor
• Series: HC05r

Specifications of MCHC705JJ7CPE

• Core Processor: HC05
• Core Size: 8-Bit
• Speed: 2.1MHz
• Connectivity: SIO
• Peripherals: POR, Temp Sensor, WDT
• Number Of I /o: 14
• Program Memory Size: 6KB (6K x 8)
• Program Memory Type: OTP
• Ram Size: 224 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-DIP (0.300", 7.62mm)
• Processor Series: HC705JJ
• Core: HC05
• Data Bus Width: 8 bit
• Data Ram Size: 224 B
• Interface Type: SIOP
• Maximum Clock Frequency: 2.1 MHz
• Number Of Programmable I/os: 14
• Number Of Timers: 2
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 4 Channel
• Package: 20PDIP
• Family Name: HC05
• Maximum Speed: 2.1 MHz
• Operating Supply Voltage: 3.3|5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Chapter 1
General Description
1.1 Introduction
The MC68HC705JJ7 and MC68HC705JP7 are erasable programmable read-only memory (EPROM)
versions of the MC68HC05JJ/JP Family of microcontrollers (MCU).
1.2 Features
Features of the two parts include:
1. No security feature is absolutely secure. However, Freescale’s strategy is to make reading or copying the EPROM/OTPROM
Freescale Semiconductor
difficult for unauthorized users.
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Low-cost, M68HC05 core MCU in 20-pin package (MC68HC705JJ7) or 28-pin package
(MC68HC705JP7)
6160 bytes of user EPROM, including 16 bytes of user vectors
224 bytes of low-power user random-access memory (RAM)
64 bits of personality EPROM (serial access)
16-bit programmable timer with input capture and output compare
15-stage core timer, including 8-bit free-running counter and 4-stage selectable real-time interrupt
generator
Simple serial input/output port (SIOP) with interrupt capability
Two voltage comparators, one of which can be combined with the 16-bit programmable timer to
create a 4-channel, single-slope analog-to-digital (A/D) converter
Output of voltage comparator can drive port pin PB4 directly under software control
14 input/output (I/O) lines (MC68HC705JJ7) or 22 I/O lines (MC68HC705JP7), including
high-source/sink current capability on 6 I/O pins (MC68HC705JJ7) or 14 I/O pins
(MC68HC705JP7)
Programmable 8-bit mask option register (MOR) to select mask options found in read-only memory
(ROM) based versions
MOR selectable software programmable pulldowns on all I/O pins and keyboard scan interrupt on
four I/O pins
Software mask and request bit for IRQ interrupt with MOR selectable sensitivity on IRQ interrupt
(edge- and level-sensitive or edge-only)
On-chip oscillator with device option of crystal/ceramic resonator or resistor-capacitor (RC)
operation and MOR selectable shunt resistor, 2 MΩ by design
Internal oscillator for lower-power operation, approximately 100 kHz (500 kHz selected as device
option)
EPROM security bit
MOR selectable computer operating properly (COP) watchdog system
MC68HC705JJ7 • MC68HC705JP7 Advance Information Data Sheet, Rev. 4.1
(1)
to aid in locking out access to programmable EPROM array
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