MCF51AC256ACPUE Freescale Semiconductor, MCF51AC256ACPUE Datasheet - Page 32
![no-image](/images/manufacturer_photos/0/2/262/freescale_semiconductor_sml.jpg)
MCF51AC256ACPUE
Manufacturer Part Number
MCF51AC256ACPUE
Description
MCU 32BIT 256K FLASH CAN 64-LQFP
Manufacturer
Freescale Semiconductor
Series
MCF51ACr
Datasheet
1.MCF51AC128CCFUE.pdf
(50 pages)
Specifications of MCF51AC256ACPUE
Core Processor
Coldfire V1
Core Size
32-Bit
Speed
50MHz
Connectivity
CAN, I²C, SCI, SPI
Peripherals
LVD, PWM, WDT
Number Of I /o
54
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
32K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 20x12b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
64-LQFP
Processor Series
MCF51AC
Core
ColdFire V1
Data Bus Width
32 bit
Data Ram Size
32 KB
Interface Type
SCI, SPI
Maximum Clock Frequency
50.33 MHz
Number Of Programmable I/os
54
Number Of Timers
8
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JLINK-CF-BDM26, EWCF
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit, 20 Channel
Package
64LQFP
Device Core
ColdFire
Family Name
MCF51AC
Maximum Speed
50.33 MHz
Operating Supply Voltage
3.3|5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCF51AC256ACPUE
Manufacturer:
MURATA
Quantity:
1 000
Company:
Part Number:
MCF51AC256ACPUE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
1
2
3
4
Electrical Characteristics
2.11.1
32
Num
Typical values are based on characterization data at V
This is the shortest pulse that is guaranteed to be recognized as a reset pin request. Shorter pulses are not guaranteed to
override reset requests from internal sources.
This is the minimum pulse width that is guaranteed to pass through the pin synchronization circuitry. Shorter pulses may or
may not be recognized. In stop mode, the synchronizer is bypassed so shorter pulses can be recognized in that case.
Timing is shown with respect to 20% V
1
2
3
4
5
6
7
8
9
C
D
D
D
D
D
D
D
D
D
Control Timing
Bus frequency (t
Internal low-power oscillator period
External reset pulse width
(t
Reset low drive
Active background debug mode latch setup time
Active background debug mode latch hold time
IRQ pulse width
KBIPx pulse width
Port rise and fall time (load = 50 pF)
Slew rate control disabled (PTxSE = 0), Low Drive
cyc
Slew rate control disabled (PTxSE = 0), Low Drive
Slew rate control enabled (PTxSE = 1), Low Drive
Slew rate control enabled (PTxSE = 1), Low Drive
= 1/f
RESET PIN
Self_reset
cyc
)
MCF51AC256 ColdFire Microcontroller Data Sheet, Rev.6
= 1/f
Parameter
IRQ/KBIPx
IRQ/KBIPx
Bus
DD
2
)
and 80% V
Figure 11. IRQ/KBIPx Timing
Asynchronous path
Asynchronous path
Synchronous path
Synchronous path
Table 17. Control Timing
Figure 10. Reset Timing
4
DD
DD
levels. Temperature range –40 C to 105 C.
= 5.0 V, 25 C unless otherwise stated.
2
3
2
3
t
t
IHIL
ILIH
t
extrst
t
t
t
Symbol
ILIH,
ILIH,
Rise
t
t
t
MSSU
t
t
rstdrv
f
extrst
MSH
LPO
Bus
, t
t
t
IHIL
IHIL
Fall
1.5 t
1.5 t
66 t
Min
800
100
500
100
100
100
dc
—
—
—
—
cyc
cyc
cyc
Typical
11
35
40
75
—
—
—
—
—
—
—
—
Freescale Semiconductor
1
1500
Max
24
—
—
—
—
—
—
—
MHz
Unit
s
ns
ns
ns
ns
ns
ns
ns