Datasheet

Electrical characteristics STM32F745xx STM32F746xx
190/227 DocID027590 Rev 4
tw(CKH)
Quad-SPI clock high and
low time
-
t(CK)/2 -1 - t(CK)/2
ns
tw(CKL) t(CK)/2 - t(CK)/2+1
ts(IN) Data input setup time
-
1--
th(IN) Data input hold time 3 - -
tv(OUT) Data output valid time
2.7 V<V
DD
<3.6 V - 1.5 3
1.71 V<V
DD
<3.6 V - 1.5 4
th(OUT) Data output hold time - 0 - -
1. Guaranteed by characterization results.
Table 107. Quad-SPI characteristics in DDR mode
(1)
1. Guaranteed by characterization results.
Symbol Parameter Conditions Min Typ Max Unit
Fck1/t(CK) Quad-SPI clock frequency
2.7 V<V
DD
<3.6 V
CL=20 pF
--80
MHz
1.8 V<V
DD
<3.6 V
CL=15 pF
--80
1.71 V<V
DD
<3.6 V
CL=10 pF
--80
tw(CKH)
Quad-SPI clock high and
low time
-
t(CK)/2
-1
-t(CK)/2
ns
tw(CKL) t(CK)/2 -
t(CK)/2+
1
ts(IN),
tsf(IN)
Data input setup time
2.7 V<V
DD
<3.6 V 1.5 - -
1.71 V<V
DD
<2 V 0.75 - -
thr(IN),
thf(IN)
Data input hold time
2.7 V<V
DD
<3.6 V 3.5 - -
1.71 V<V
DD
<2 V 4.5
tvr(OUT),
tvf(OUT)
Data output valid time
2.7 V<V
DD
<3.6 V - 8 10.5
1.71 V<V
DD
<3.6 V
DHHC=0
- 8 14.5
DHHC=1
Pres=1, 2...
-
Thclk/2
+1.75
Thclk/2
+2.25
thr(OUT),
thf(OUT)
Data output hold time
DHHC=0 7.5 - -
DHHC=1
Pres=1, 2...
Thclk/2
+1.5
--
Table 106. Quad-SPI characteristics (continued)in SDR mode
(1)
(continued)
Symbol Parameter Conditions Min Typ Max Unit
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