ST72F321R6TC STMicroelectronics, ST72F321R6TC Datasheet - Page 163
ST72F321R6TC
Manufacturer Part Number
ST72F321R6TC
Description
IC MCU 8BIT 32K FLASH 64-TQFP
Manufacturer
STMicroelectronics
Series
ST7r
Datasheet
1.ST72F321AR7T6.pdf
(193 pages)
Specifications of ST72F321R6TC
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
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
3.8 V ~ 5.5 V
Data Converters
A/D 16x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ST72F321R6TC
Manufacturer:
STMicroelectronics
Quantity:
10 000
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12.11 COMMUNICATION INTERFACE CHARACTERISTICS
12.11.1 SPI - Serial Peripheral Interface
Subject to general operating conditions for V
f
Figure 92. SPI Slave Timing Diagram with CPHA=0
Notes:
1. Data based on design simulation and/or characterisation results, not tested in production.
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 on the I/O port configuration.
3. Measurement points are done at CMOS levels: 0.3xV
4. Depends on f
CPU
Symbol
1/t
t
t
w(SCKH)
w(SCKL)
t
t
t
t
t
t
dis(SO)
t
t
t
t
t
t
r(SCK)
f(SCK)
su(SS)
t
su(MI)
t
h(MO)
f
su(SI)
a(SO)
h(SO)
v(MO)
MISO
MOSI
h(SS)
v(SO)
, and T
h(MI)
SCK
c(SCK)
h(SI)
SS
CPHA=0
CPOL=0
CPHA=0
CPOL=1
OUTPUT
INPUT
INPUT
A
SPI clock frequency
SPI clock rise and fall time
SS setup time
SS hold time
SCK high and low time
Data input setup time
Data input hold time
Data output access time
Data output disable time
Data output valid time
Data output hold time
Data output valid time
Data output hold time
unless otherwise specified.
CPU
see note 2
. For example, if f
t
a(SO)
t
su(SS)
t
su(SI)
4)
Parameter
CPU
MSB IN
t
t
w(SCKH)
w(SCKL)
MSB OUT
= 8 MHz, then t
t
t
h(SI)
c(SCK)
t
DD
v(SO)
DD
,
Master
f
Slave
f
Slave
Slave
Master
Slave
Master
Slave
Master
Slave
Slave
Slave
Slave (after enable edge)
Master (after enable edge)
CPU
CPU
BIT6 OUT
CPU
and 0.7xV
=8MHz
=8MHz
Refer to I/O port characteristics for more details on
the input/output alternate function characteristics
(SS, SCK, MOSI, MISO).
= 1 / f
3)
Conditions
CPU
DD
ST72321Rx ST72321ARx ST72321Jx
BIT1 IN
.
= 125 ns and t
t
h(SO)
t
t
r(SCK)
f(SCK)
su(SS)
t
f
CPU
CPU
0.0625
see I/O port pin description
LSB IN
Min
120
100
100
100
100
100
90
0
0
0
0
= 175 ns.
LSB OUT
/128
+ 50
t
h(SS)
f
f
CPU
CPU
Max
120
240
120
120
2
4
/4
/2
t
dis(SO)
163/193
t
Unit
MHz
CPU
ns
note 2
see
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