AT91SAM7S321-AU Atmel, AT91SAM7S321-AU Datasheet - Page 577

• Manufacturer Part Number: AT91SAM7S321-AU
• Description: IC ARM7 MCU FLASH 32K 64LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S321-AU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• Processor Series: AT91SAMx
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 8 KB
• Interface Type: I2C, I2S, SPI, SSC, TWI, UART, USB
• Maximum Clock Frequency: 55 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 10 bit
• Operating Supply Voltage: 1.8 V to 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-ARM-2M, KSK-AT91SAM7S-PL, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: AT91SAM-ICE, AT91-ISP, AT91SAM7S-EK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Controller Family/series: AT91SAM7xxxx
• No. Of I/o's: 32
• Ram Memory Size: 8KB
• Cpu Speed: 55MHz
• No. Of Timers: 3
• Rohs Compliant: Yes
• For Use With: AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7S-EK - KIT EVAL FOR ARM AT91SAM7S
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Table 37-23. SSC Timings (Continued)
Notes:
6175K–ATARM–30-Aug-10
Symbol
SSC
SSC
SSC
SSC
SSC
SSC
SSC
SSC
6
7
8
9
10
11
12
13
(1)
1. Timings SSC4 and SSC7 depend on the start condition. When STTDLY = 0 (Receive start delay) and START = 4, or 5 or 7
2. For output signals (TF, TD, RF), Min and Max access times are defined. The Min access time is the time between the TK (or
3. 3.3V domain: V
4. 1.8V domain: V
5. t
(Receive Start Selection), two Periods of the MCK must be added to timings.
RK) edge and the signal change. The Max access timing is the time between the TK edge and the signal stabilization.
37-16
Parameter
TF hold time after TK edge (TK input)
TK edge to TF/TD (TK input, TF input)
RF/RD setup time before RK edge (RK input)
RF/RD hold time after RK edge (RK input)
RK edge to RF (RK input)
RF/RD setup time before RK edge (RK output)
RF/RD hold time after RK edge (RK output)
RK edge to RF (RK output)
CPMCK
illustrates Min and Max accesses for SSC0. The same applies for SSC1, SSC4, and SSC7, SSC10 and SSC13.
: Master Clock period in ns
VDDIO
VDDIO
Figure 37-16. Min and Max access time of output signals
from 3.0V to 3.6V, maximum external capacitor = 40 pF.
from 1.65V to 1.95V, maximum external capacitor = 20 pF.
TK (CKI =0)
TK (CKI =1)
TF/TD
Receiver
Conditions
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
3.3V domain
1.8V domain
AT91SAM7S Series Preliminary
SSC
SSC
0max
0min
10 (+3*t
6 (+3*t
56.5 - t
t
26 - t
t
CPMCK
CPMCK
t
t
t
t
10.5
CPMCK
CPMCK
CPMCK
CPMCK
Min
CPMCK
6
0
0
CPMCK
0
0
(2)
CPMCK
(2)
(2)
CPMCK
(2)
- 5.5
- 10
)
(1)(2)
)
(1)(2)
29.5 (+3*t
56 (+3*t
Max
27
58
12
4
CPMCK
(2)
CPMCK
(2)
(2)
(2)
)
(1)(2)
)
(1)(2)
Units
Figure
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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