ST7LITE49K2 STMicroelectronics, ST7LITE49K2 Datasheet - Page 205

• Manufacturer Part Number: ST7LITE49K2
• Description: 8-bit MCU
• Manufacturer: STMicroelectronics

Specifications of ST7LITE49K2

• 8 Kbytes Single Voltage Extended Flash (xflash) Program Memory With Read-out Protection In-circuit Programming And In-application Programming (icp And Iap) Endurance: 10K write/erase cycles guaranteed Data retention
• 256 Bytes Data Eeprom With Read-out Protection. 300k Write/erase Cycles Guaranteed, Data Retention: 20 years at 55 °C.
• Clock Sources: Internal trimmable 8 MHz RC oscillator, auto-wakeup internal low power - low frequency oscillator, crystal/ceramic resonator or external clock
• Five Power Saving Modes: Halt, Active-halt, Auto-wakeup from Halt, Wait and Slow

ST7LITE49K2
13.5.2
SPI interface
Subject to general operating conditions for V
Refer to I/O port characteristics for more details on the input/output alternate function
characteristics (SS, SCK, MOSI, MISO).
Table 82.
1. Data based on design simulation, not tested in production.
2. Depends on f
t
t
t
w(SCKL)
t
w(SCKH)
1/t
t
t
t
Symbol
t
t
dis(SO)
t
t
t
su(SS)
t
su(MI)
t
v(MO)
h(MO)
su(SI)
a(SO)
v(SO)
h(SO)
h(SS)
h(MI)
t
t
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 rise and fall time
SPI interface characteristics
Data output access time
Data output disable time
SCK high and low time
CPU
Data output valid time
Data output valid time
Data output hold time
Data output hold time
Data input setup time
SPI clock frequency
Data input hold time
SS setup time
. For example, if f
SS hold time
Parameter
(2)
CPU
= 8 MHz, then T
enable edge)
enable edge)
Master (after
f
f
Conditions
Slave (after
CPU
CPU
Master
Master
Master
Master
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
=8 MHz
=8 MHz
DD
, f
CPU
OSC
= 1/f
, and T
CPU
(4 x T
=125 ns and t
A
f
CPU
see I/O port pin description
0.0625
unless otherwise specified.
Min
CPU
120
100
100
100
100
100
90
0
0
0
0
/128
Electrical characteristics
) + 50
su(SS)
= 550 ns
f
f
CPU
CPU
Max
240
120
120
120
2
4
/4
/2
205/245
MHz
Unit
ns