SAM7S321 Atmel Corporation, SAM7S321 Datasheet - Page 184
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SAM7S321
Manufacturer Part Number
SAM7S321
Description
Manufacturer
Atmel Corporation
Specifications of SAM7S321
Flash (kbytes)
32 Kbytes
Pin Count
64
Max. Operating Frequency
55 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
32
Ext Interrupts
32
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
1
Twi (i2c)
1
Uart
3
Ssc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
384
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
8
Self Program Memory
NO
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Operating Voltage (vcc)
3.0 to 3.6
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
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AC and DC Parameters
7.9
7-12
Unidirectional data read cycle timing
Figure 7-8 shows the ARM7TDMI processor unidirectional data read cycle timing. The
timing parameters used in Figure 7-7 are listed in Table 7-7.
DIN[31:0]
nENOUT
BL[3:0]
MCLK
Copyright © 1994-2001. All rights reserved.
T
T
nen
bylh
Symbol
T
T
T
T
T
bylh
byls
dihu
disu
nen
Table 7-8 Unidirectional data read cycle timing parameters
T
byls
Parameter
BL[3:0] hold time from MCLKf
BL[3:0] set up to from MCLKr
DIN[31:0] hold time from MCLKf
DIN[31:0] set up time to MCLKf
MCLKf to nENOUT valid
Figure 7-8 Unidirectional data read cycle timing
T
T
dihu
disu
Minimum
Minimum
Minimum
Minimum
Maximum
Parameter type
ARM DDI 0029G
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