MCF51CN128CGT Freescale Semiconductor, MCF51CN128CGT Datasheet - Page 23

• Manufacturer Part Number: MCF51CN128CGT
• Description: IC MCU 32BIT 128K FLASH 48-QFN
• Manufacturer: Freescale Semiconductor
• Series: MCF51CNr

Specifications of MCF51CN128CGT

• Core Processor: Coldfire V1
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: Ethernet, I²C, SCI, SPI
• Peripherals: LVD, PWM, WDT
• Number Of I /o: 38
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 12x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-QFN
• Processor Series: MCF51CN
• Core: ColdFire V1
• Data Bus Width: 32 bit
• Data Ram Size: 24 KB
• Interface Type: I2C, SPI, SCI
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 38
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JLINK-CF-BDM26, EWCF
• Development Tools By Supplier: TWR-MCF51CN-KIT, TWR-SER, TWR-ELEV, TOWER
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 12 bit, 12 Channel
• For Use With: TWR-MCF51CN - KIT TOWER BOARDTWR-MCF51CN-KIT - KIT TOWER BOARD/SERIAL/ELEVATOR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

3.10
A multi-function external bus interface called Mini-FlexBus is provided with basic functionality to interface to slave-only
devices up to a maximum bus frequency of
such as external boot ROMs, flash memories, gate-array logic, or other simple target (slave) devices with little or no additional
circuitry. For asynchronous devices a simple chip-select based interface can be used.
All processor bus timings are synchronous; that is, input setup/hold and output delay are given in respect to the rising edge of
a reference clock, MB_CLK. The MB_CLK frequency is half the internal system bus frequency.
The following timing numbers indicate when data is latched or driven onto the external bus, relative to the Mini-FlexBus output
clock (MB_CLK). All other timing relationships can be derived from these values.
Freescale Semiconductor
1
2
Num
MB1
MB2
MB3
MB4
MB5
Specification is valid for all MB_A[19:0], MB_D[7:0], MB_CS[1:0], MB_OE, MB_R/W, and MB_ALE.
Specification is valid for all MB_D[7:0].
—
Mini-FlexBus Timing Specifications
8-bit Non-Mux’d Bus
16-bit Mux’d Bus
—
C
D
D
D
P
P
Frequency of Operation
Clock Period
Output Valid
Output Hold
Input Setup
Input Hold
MCF51CN128 ColdFire Microcontroller Data Sheet, Rev. 4
FB_CSn, FB_OE
Table 12. Mini-FlexBus AC Timing Specifications
FB_AD[19:16]
FB_A[19:16]
FB_AD[15:0]
FB_D[7:0]
Figure 13. Mini-FlexBus Read Timing
FB_CLK
FB_R/W
FB_ALE
Characteristic
25.1666 MHz
ADDR[31:24]
. It can be directly connected to asynchronous or synchronous devices
S0
MB1
ADDR[15:0]
MB2
ADDR[19:0]
ADDR[19:16]
S1
DATA[15:0]
DATA[7:0]
39.73
Min
1.0
S2
MB4
22
10
—
—
MB5
25.1666
Max
20
—
—
—
—
MB3
S3
Electrical Characteristics
MHz
Unit
ns
ns
ns
ns
ns
S0
Notes
—
—
1
1
2
2
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