MC908GR4CDWE Freescale Semiconductor, MC908GR4CDWE Datasheet - Page 162
MC908GR4CDWE
Manufacturer Part Number
MC908GR4CDWE
Description
IC MCU 4K FLASH 8MHZ 28-SOIC
Manufacturer
Freescale Semiconductor
Series
HC08r
Specifications of MC908GR4CDWE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
17
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
384 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 6x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOIC (7.5mm Width)
Controller Family/series
HC08
No. Of I/o's
21
Ram Memory Size
384Byte
Cpu Speed
8MHz
No. Of Timers
1
Embedded Interface Type
I2C, SCI, SPI
Rohs Compliant
Yes
Processor Series
HC08GR
Core
HC08
Data Bus Width
8 bit
Data Ram Size
384 B
Interface Type
SCI, SPI
Maximum Clock Frequency
8.2 MHz
Number Of Programmable I/os
21
Number Of Timers
3
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, DEMO908GZ60E, M68CBL05CE, M68EML08GPGTE
Minimum Operating Temperature
- 40 C
On-chip Adc
8 bit, 6 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
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Serial Communications Interface (SCI)
18.3 Pin Name Conventions
The generic names of the SCI I/O pins are:
SCI I/O (input/output) lines are implemented by sharing parallel I/O port pins. The full name of an SCI
input or output reflects the name of the shared port pin.
names of the SCI I/O pins.
The generic pin names appear in the text of this chapter.
18.4 Functional Description
Figure 18-1
communication among the MCU and remote devices, including other MCUs. The transmitter and receiver
of the SCI operate independently, although they use the same baud rate generator. During normal
operation, the CPU monitors the status of the SCI, writes the data to be transmitted, and processes
received data.
The baud rate clock source for the SCI can be selected via the configuration bit, SCIBDSRC, of the
CONFIG2 register ($001E).
162
•
•
RxD (receive data)
TxD (transmit data)
shows the structure of the SCI module. The SCI allows full-duplex, asynchronous, NRZ serial
Generic Pin Names:
Full Pin Names:
MC68HC908GR8 • MC68HC908GR4 Data Sheet, Rev. 7
Table 18-1. Pin Name Conventions
PE1/RxD
Table 18-1
RxD
shows the full names and the generic
PE0/TxD
TxD
Freescale Semiconductor
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