MC68HC705B16CFN Freescale Semiconductor, MC68HC705B16CFN Datasheet - Page 74

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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

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6
Freescale
6-2
SCLK
TDO
pin
pin
(See note)
Note:
$0011
Clock extraction
polarity control
phase and
data register
data shift
Transmit
Transmit
register
Transmitter
Figure 6-1 Serial communications interface block diagram
The serial communications data register (SCI SCDR) is controlled by the internal
R/W signal. It is the transmit data register when written to and the receive data
register when read.
clock
TE
Transmitter
TRDE
R8
control
Internal bus
7
SERIAL COMMUNICATIONS INTERFACE
7
SBK
TC
T8
6
6
&
RDRF
5
5
+
&
control
IDLE
Flag
M
4
4
+
7
SCI interrupt
WAKE
OR
&
3
3
CPOL
NF
2
2
Receiver
&
control
CPHA
SCSR
$0010
FE
1
1
Receiver
clock
LBCL
0
SCCR1
$000E
SCCR2
$000F
Wake up
TCIE
RWU
SBK
RIE
ILIE
TIE
TE
RE
(See note)
unit
$0011
7
6
5
4
3
2
1
0
data register
data shift
Receive
Receive
register
MC68HC05B6
Rev. 4.1
RDI
pin

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