MC68HC705B16CFN Freescale Semiconductor, MC68HC705B16CFN Datasheet - Page 151

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MC68HC705B16CFN

Manufacturer Part Number
MC68HC705B16CFN
Description
IC MCU 2.1MHZ 15K OTP 52-PLCC
Manufacturer
Freescale Semiconductor
Series
HC05r
Datasheet

Specifications of MC68HC705B16CFN

Core Processor
HC05
Core Size
8-Bit
Speed
2.1MHz
Connectivity
SCI
Peripherals
POR, WDT
Number Of I /o
32
Program Memory Size
15KB (15K x 8)
Program Memory Type
OTP
Eeprom Size
256 x 8
Ram Size
352 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
52-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
The MC68HC05B4 is a device similar to the MC68HC05B6, but without EEPROM and having a
reduced ROM size of 4 kbytes. The entire MC68HC05B6 data sheet applies to the MC68HC05B4,
with the exceptions outlined in this appendix.
A.1
Features
4158 bytes User ROM (including 14 bytes User vectors)
No EEPROM
High speed version not available
Section 3.5, ‘EEPROM’, therefore, does not apply to the MC68HC05B4, and the register at
address $07 only allows the user to select whether or not the ECLK should appear at PC2, using
bit 3 of $07. All other bits of this register read as ‘0’.
Table A-1 Mode of operation selection
IRQ pin
TCAP1 pin
V
to V
V
SS
DD
SS
2V
DD
2V
DD
2V
DD
MC68HC05B6
Rev. 4.1
A
MC68HC05B4
PD3
PD4
to V
X
X
Single chip
DD
V
0
X
Self check
DD
V
1
0
Serial RAM loader
DD
V
1
1
Jump to any address
DD
MC68HC05B4
Mode
Freescale
A-1
14

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