MC68332ACFC25 Freescale Semiconductor, MC68332ACFC25 Datasheet - Page 90
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MC68332ACFC25
Manufacturer Part Number
MC68332ACFC25
Description
IC MCU 32BIT 25MHZ 132-PQFP
Manufacturer
Freescale Semiconductor
Series
M683xxr
Specifications of MC68332ACFC25
Core Processor
CPU32
Core Size
32-Bit
Speed
25MHz
Connectivity
EBI/EMI, SCI, SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
15
Program Memory Type
ROMless
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
132-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68332ACFC25
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC68332ACFC25
Manufacturer:
MOTOROLA/摩托罗拉
Quantity:
20 000
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Chip-select assertion can be synchronized with bus control signals to provide output
enable, read/write strobe, or interrupt acknowledge signals. Chip select logic can also
generate DSACK and AVEC signals internally. Each signal can also be synchronized
with the ECLK signal available on ADDR23.
When a memory access occurs, chip-select logic compares address space type, ad-
dress, type of access, transfer size, and interrupt priority (in the case of interrupt ac-
knowledge) to parameters stored in chip-select registers. If all parameters match, the
appropriate chip-select signal is asserted. Select signals are active low. If a chip-select
function is given the same address as a microcontroller module or an internal memory
array, an access to that address goes to the module or array, and the chip-select sig-
nal is not asserted. The external address and data buses do not reflect the internal ac-
cess.
All chip-select circuits are configured for operation out of reset. However, all chip-se-
lect signals except CSBOOT are disabled, and cannot be asserted until the BYTE field
1. Can be decoded to provide additional address space.
2. Varies depending upon peripheral memory size.
ADDR[23:0]
DATA[15:0]
MCU
Freescale Semiconductor, Inc.
CSBOOT
CLKOUT
DSACK
For More Information On This Product,
CS3
CS5
R/W
IRQ
FC
SIZ
DS
AS
Figure 4-17 Basic MCU System
1
SYSTEM INTEGRATION MODULE
Go to: www.freescale.com
DSACK
DS
DATA[15:0]
DATA[15:8]
R/W
DATA[7:0]
R/W
SIZ
CLK
AS
CS
IACK
IRQ
ADDR[15:0]
ADDR[23:0]
CS
ADDR[23:0]
CS
PERIPHERAL
ASYNC BUS
MEMORY
MEMORY
2
2
2
32 EXAMPLE SYS BLOCK
USER’S MANUAL
MC68332
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