ST72321J7-Auto STMicroelectronics, ST72321J7-Auto Datasheet - Page 211
ST72321J7-Auto
Manufacturer Part Number
ST72321J7-Auto
Description
8-bit MCU for automotive with 48 Kbyte Flash, 10-bit ADC, timers, SPI, SCI and I2C interfaces
Manufacturer
STMicroelectronics
Datasheet
1.ST72321R9-AUTO.pdf
(243 pages)
Specifications of ST72321J7-Auto
Hdflash Endurance
100 cycles, data retention 20 years
Clock Sources
crystal/ceramic resonator oscillators, internal RC oscillator and bypass for external clock
4 Power Saving Modes
Halt, Active Halt, Wait and Slow
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ST72321xx-Auto
19.11
19.11.1
Table 132. SPI characteristics
1. Data based on design simulation and/or characterization results, not tested in production.
2. Depends on f
t
t
w(SCKH)
w(SCKL)
t
1/t
t
Symbol
t
t
t
t
t
t
dis(SO)
t
t
su(SS)
t
su(MI)
t
h(MO)
su(SI)
a(SO)
h(SO)
v(MO)
t
h(SS)
v(SO)
t
h(MI)
h(SI)
r(SCK)
f(SCK)
f
c(SCK)
SCK
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
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
Communication interface characteristics
SPI (serial peripheral interface)
Subject to general operating conditions for V
Refer to
alternate function characteristics (SS, SCK, MOSI, MISO).
CPU
. For example, if f
Parameter
Section 19.8: I/O port pin characteristics
(2)
CPU
= 8 MHz, then t
Master, f
Slave, f
Slave
Slave
Master
Slave
Master
Slave
Master
Slave
Slave
Slave
Slave (after enable edge)
Master (after enable edge)
Doc ID 13829 Rev 1
Conditions
CPU
CPU
CPU
= 8 MHz
= 8 MHz
= 1 / f
CPU
DD
= 125 ns and t
, f
CPU
for more details on the input/output
f
CPU
, and T
t
/128 = 0.0625
CPU
Min
120
100
100
100
100
100
su(SS)
90
0
see I/O port pin description
0
0
0
A
+ 50
unless otherwise specified.
= 175 ns.
Electrical characteristics
f
f
CPU
CPU
Max
120
240
120
120
/4 = 2
/2 = 4
211/243
MHz
Unit
t
CPU
ns
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