ST72F321AR9TA STMicroelectronics, ST72F321AR9TA Datasheet - Page 164

• Manufacturer Part Number: ST72F321AR9TA
• Description: IC MCU 8BIT 60KB FLASH 64-TQFP
• Manufacturer: STMicroelectronics
• Series: ST7r

Specifications of ST72F321AR9TA

• Core Processor: ST7
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: I²C, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 48
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 3.8 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

ST72321Rx ST72321ARx ST72321Jx
COMMUNICATION INTERFACE CHARACTERISTICS (Cont’d)
Figure 93. SPI Slave Timing Diagram with CPHA=1
Figure 94. SPI Master Timing Diagram
Notes:
1. Measurement points are done at CMOS levels: 0.3xV
2. When no communication is on-going the data output line of the SPI (MOSI in master mode, MISO in slave mode) has
its alternate function capability released. In this case, the pin status depends of the I/O port configuration.
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MISO
MOSI
MISO
MOSI
SS
CPHA=1
CPOL=0
CPHA=1
CPOL=1
SS
OUTPUT
INPUT
CPHA = 0
CPOL = 0
CPHA = 0
CPOL = 1
CPHA = 1
CPOL = 0
CPHA = 1
CPOL = 1
INPUT
OUTPUT
INPUT
INPUT
see
note 2
See note 2
t
a(SO)
t
su(SS)
HZ
t
t
t
su(MI)
w(SCKH)
w(SCKL)
t
su(SI)
MSB OUT
MSB IN
MSB OUT
t
MSB IN
h(MI)
1)
t
h(SI)
t
c(SCK)
t
c(SCK)
t
t
t
v(MO)
w(SCKH)
w(SCKL)
t
v(SO)
DD
and 0.7xV
BIT6 OUT
1)
BIT6 IN
BIT6 OUT
DD
.
BIT1 IN
t
h(MO)
t
h(SO)
t
t
r(SCK)
f(SCK)
t
t
r(SCK)
f(SCK)
LSB OUT
LSB IN
LSB OUT
LSB IN
t
h(SS)
See note 2
t
dis(SO)
note 2
see