MC68340AG25E Freescale Semiconductor, MC68340AG25E Datasheet - Page 397
![no-image](/images/manufacturer_photos/0/2/262/freescale_semiconductor_sml.jpg)
MC68340AG25E
Manufacturer Part Number
MC68340AG25E
Description
IC MPU 32BIT 25MHZ 144-LQFP
Manufacturer
Freescale Semiconductor
Datasheet
1.MC68340FE25E.pdf
(441 pages)
Specifications of MC68340AG25E
Processor Type
M683xx 32-Bit
Speed
25MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
144-LQFP
Controller Family/series
68K
Core Size
32 Bit
No. Of I/o's
16
Cpu Speed
25MHz
No. Of Timers
2
Embedded Interface Type
UART
Digital Ic Case Style
LQFP
Rohs Compliant
Yes
Processor Series
M683xx
Core
CPU32
Maximum Clock Frequency
25 MHz
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
0 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Features
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC68340AG25E
Manufacturer:
Freescale Semiconductor
Quantity:
135
Company:
Part Number:
MC68340AG25E
Manufacturer:
Freescale Semiconductor
Quantity:
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10.2.4 Interfacing an 8-Bit Device to 16-Bit Memory Using Single-
Address DMA Mode
One of the requirements of single-address mode is that the source and destination must
be the same port size. However, the MC68340 can perform direct memory accesses in
single-address mode between an 8-bit device and 16-bit memory. The port size must be
specified as 8 bits, and some external logic is required as shown in Figure 10-14.
During even-byte accesses, the data is transferred directly on D15–D8. However, during
odd-byte accesses, the data must be routed on D15–D8 for the 8-bit device and on D7–
D0 for the 16-bit memory.
10.3 POWER CONSUMPTION CONSIDERATIONS
The MC68340 can be designed into low-power applications that involve high-performance
processing capability (32-bits), high functional density, small size, portable capability, and
battery operation.
The MC68340 fits into the following types of applications:
10-10
• "Palmtop" Computers
• Transaction Tracking
• Bar Code Scanners
— Stylus Input
— Voice Input
— Image Input
— Car Rental
— Cargo
— Courier
— Handheld
Figure 10-14. Circuitry for Interfacing 8-Bit Device to
MC68340
DEVICE
16-Bit Memory in Single-Address DMA Mode
Freescale Semiconductor, Inc.
For More Information On This Product,
SIZ1
SIZ0
R/W
A0
MC68340 USER’S MANUAL
Go to: www.freescale.com
D15-D8
T/R
OE
• CD-I, CD-ROM
• Defense Industry
• Instruments
• Telephony
• Data Entry
• Handheld Games
— Cordless Phones
— Cellular Phones
— Guidance Systems
— Tracking Systems
74F245
B
A
D7-D0
MEMORY
MOTOROLA
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