ST72321J7-Auto STMicroelectronics, ST72321J7-Auto Datasheet - Page 214

• 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

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

Electrical characteristics
19.11.2
Table 133. I
1. At 4 MHz f
2. Data based on standard I
3. The maximum hold time of the START condition has only to be met if the interface does not stretch the low period of SCL
4. The device must internally provide a hold time of at least 300ns for the SDA signal in order to bridge the undefined region
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t
w(STO:STA)
Symbol
t
t
t
t
t
w(SCLH)
t
w(SCLL)
su(SDA)
t
t
t
t
su(STO)
260 kHz.
signal.
of the falling edge of SCL.
t
su(STA)
h(SDA)
h(STA)
r(SDA)
r(SCL)
f(SDA)
f(SCL)
C
b
CPU
SCL clock low time
SCL clock high time
SDA setup time
SDA data hold time
SDA and SCL rise time
SDA and SCL fall time
START condition hold time
Repeated START condition setup time
STOP condition setup time
STOP to START condition time (bus free)
Capacitive load for each bus line
I
Subject to general operating conditions for V
Refer to
alternate function characteristics (SDAI and SCLI). The ST7 I2C interface meets the
requirements of the standard I2C communication protocol described in the following table.
2
2
C control interface characteristics
, maximum I
C - inter IC control interface
Section 19.8: I/O port pin characteristics
2
C protocol requirement, not tested in production.
2
C speed (400 kHz) is not achievable. In this case, maximum I
Parameter
Doc ID 13829 Rev 1
Standard mode I
Min
250
0
4.7
4.0
4.0
4.7
4.0
4.7
DD
(3)
(2)
, f
CPU
for more details on the input/output
, and T
Max
1000
300
400
(2)
2
C
A
unless otherwise specified.
2
C speed will be approximately
20+0.1C
Min
Fast mode I
100
0
1.3
0.6
0.6
1.3
(4)
(2)
b
ST72321xx-Auto
Max
900
2
300
400
C
(1)
(3)
(2)
Unit
pF
µs
ns
µs