STR750FXX STMICROELECTRONICS [STMicroelectronics], STR750FXX Datasheet - Page 62

• Manufacturer Part Number: STR750FXX
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

Electrical parameters
5.3.10
62/81
Communication interface characteristics
SSP Synchronous Serial Peripheral in Master mode (SPI or TI mode)
General operating conditions: V
Table 38.
1. Data based on characterisation results, not tested in production.
2. Max frequency for the 2 SSPs is f
t
Symbol
t
t
SCKNSSH
t
w(SCKH)
t
t
NSSLQV
w(SCKL)
t
t
limitation due to I/O speed capability. SSP0 uses IO4 type while SSP1 uses IO2 type I/Os.
SCKQV
SCKQX
r(SCK)
f(SCK)
f
SCK
t
t
su
h
SPI clock frequency
SPI clock rise time
SPI clock fall time
SCK high and low time
NSS low to Data Output
MOSI valid time
SCK last edge to NSS high
SCK trigger edge to data
output MOSI valid time
SCK trigger edge to data
output MOSI invalid time
Data input (MISO) setup
time w.r.t SCK sampling
edge
Data input (MISO) hold time
w.r.t SCK sampling edge
SSP Master mode characteristics
Parameter
PCLK
(2)
33
, 3.0V to 3.3V, V18 =1.8V, C
/2; f
PCLK
CPHA = 0
CPHA = 1
STR750Fxx STR751Fxx STR752Fxx STR755Fxx
max = 32 MHz. This takes into account the frequency
Conditions
(1)
SSP0
SSP1
SSP0
SSP1
SSP0
SSP1
SSP0
SSP1
SSP0
SSP1
SSP0
SSP1
SSP0
SSP1
SSP0
SSP1
SSP0
SSP1
SSP0
SSP1
SSP0
SSP1
Min
L
25
25
0
0
0
0
≈
45 pF.
0.5t
0.5t
0.5t
0.5t
t
t
SCK
SCK
SCK
SCK
SCK
SCK
Max
16
14
33
11
30
19
30
15
30
+15ns
+30ns
8
+15ns
+30ns
+15ns
+30ns
MHz
Unit
ns