ST72C334N2B6 STMicroelectronics, ST72C334N2B6 Datasheet - Page 112

• Manufacturer Part Number: ST72C334N2B6
• Description: Microcontrollers (MCU) Flash 8K SPI/SCI
• Manufacturer: STMicroelectronics

Specifications of ST72C334N2B6

• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 8 KB
• Data Ram Size: 384 B
• Interface Type: SCI, SPI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 44
• Number Of Timers: 16 bit
• Operating Supply Voltage: 3.2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Package / Case: SDIP-56
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Lead Free Status / Rohs Status: No

ST72334J/N, ST72314J/N, ST72124J
MEMORY AND PERIPHERAL CHARACTERISTICS (Cont’d)
Figure 59. SPI Master Timing Diagram CPHA=0, CPOL=0
Notes:
1) Data based on characterization results, not tested in production.
2) Measurement points are V
112/125
SPI Serial Peripheral Interface
Ref.
10
11
12
13
1
2
3
4
5
6
7
8
9
(OUTPUT)
(OUTPUT)
Symbol
(INPUT)
(INPUT)
t
MOSI
t
MISO
t
SPI_H
SPI_L
t
t
f
t
Lead
t
t
t
t
Hold
Rise
SCK
Lag
SPI
SPI
Dis
Fall
SU
t
t
t
H
A
V
SS
SPI frequency
SPI clock period
Enable lead time
Enable lag time
Clock (SCK) high time
Clock (SCK) low time
Data set-up time
Data hold time (inputs)
Access time (time to data active
from high impedance state)
Disable time (hold time to high im-
pedance state)
Data valid
Data hold time (outputs)
Rise time
(20% V
Fall time
(70% V
DD
DD
OL
10
, V
6
to 70% V
to 20% V
Parameter
OH
D7-OUT
, V
D7-IN
7
IL
DD
DD
4
and V
11
, C
, C
L
L
IH
= 200pF)
= 200pF)
in the SPI timing diagram.
5
Master
Slave
Master
Slave
Slave
Slave
Master
Slave
Master
Slave
Master
Slave
Master
Slave
Slave
Master (before capture edge)
Slave (after enable edge)
Master (before capture edge)
Slave (after enable edge)
Outputs: SCK,MOSI,MISO
Inputs: SCK,MOSI,MISO,SS
Outputs: SCK,MOSI,MISO
Inputs: SCK,MOSI,MISO,SS
D6-IN
D6-OUT
1
Condition
2)
13
D0-OUT
D0-IN
1/128
0.25
0.25
Min
12
120
120
100
100
100
100
100
100
90
90
dc
4
2
0
0
Value
1)
VR000109
Max
120
240
120
100
100
100
100
1/4
1/2
f
t
t
t
Unit
CPU
CPU
CPU
CPU
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
s