MC9S12GC64MFAE Freescale Semiconductor, MC9S12GC64MFAE Datasheet - Page 396
MC9S12GC64MFAE
Manufacturer Part Number
MC9S12GC64MFAE
Description
IC MCU 64K FLASH 25MHZ 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS12r
Datasheet
1.MC9S12GC16MFUE.pdf
(690 pages)
Specifications of MC9S12GC64MFAE
Core Processor
HCS12
Core Size
16-Bit
Speed
25MHz
Connectivity
EBI/EMI, SCI, SPI
Peripherals
POR, PWM, WDT
Number Of I /o
31
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.35 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
48-LQFP
Processor Series
S12GC
Core
HCS12
Data Bus Width
16 bit
Data Ram Size
4 KB
Interface Type
CAN/SCI/SPI
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
31
Number Of Timers
8
Operating Supply Voltage
3.3 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWHCS12
Development Tools By Supplier
M68EVB912C32EE, M68DKIT912C32SLK
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
MC9S12GC64MFAE
Manufacturer:
THINE
Quantity:
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Part Number:
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Manufacturer:
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Chapter 13 Serial Communications Interface (S12SCIV2) Block Description
13.4.2
A 13-bit modulus counter in the baud rate generator derives the baud rate for both the receiver and the
transmitter. The value from 0 to 8191 written to the SBR12–SBR0 bits determines the module clock
divisor. The SBR bits are in the SCI baud rate registers (SCIBDH and SCIBDL). The baud rate clock is
synchronized with the bus clock and drives the receiver. The baud rate clock divided by 16 drives the
transmitter. The receiver has an acquisition rate of 16 samples per bit time.
Baud rate generation is subject to one source of error:
Table 13-10
SCI baud rate = SCI module clock / (16 * SCIBR[12:0])
396
Integer division of the module clock may not give the exact target frequency.
Baud Rate Generation
lists some examples of achieving target baud rates with a module clock frequency of 25 MHz
SBR[12-0]
1302
2604
5208
Bits
163
326
651
41
81
Table 13-10. Baud Rates (Example: Module Clock = 25 MHz)
Clock (Hz)
609,756.1
308,642.0
153,374.2
Receiver
76,687.1
38,402.5
19,201.2
9600.6
4800.0
MC9S12C-Family / MC9S12GC-Family
Rev 01.24
Transmitter
Clock (Hz)
38,109.8
19,290.1
9585.9
4792.9
2400.2
1200.1
600.0
300.0
Target Baud
38,400
19,200
9600
4800
2400
1200
Rate
600
300
Error
(%)
.76
.47
.16
.15
.01
.01
.00
.00
Freescale Semiconductor
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