STM32F427XX Datasheet, PDF (177/239 Pages) STMicroelectronics – ARM Cortex-M4 32b MCU+FPU, 225DMIPS, up to 2MB Flash/256+4KB RAM, USB OTG HS/FS, Ethernet, 17 TIMs, 3 ADCs, 20 comm. interfaces, camera & LCD-TFT

STM32F427xx STM32F429xx
Electrical characteristics
Table 94. Synchronous multiplexed NOR/PSRAM read timings⁽¹⁾⁽²⁾ (continued)
Symbol
Parameter
Min
Max Unit
t_su(ADV-CLKH)
FMC_A/D[15:0] valid data before FMC_CLK
high
5
t_h(CLKH-ADV) FMC_A/D[15:0] valid data after FMC_CLK high
0
t_{su(NWAIT-CLKH)} FMC_NWAIT valid before FMC_CLK high
4
t_{h(CLKH-NWAIT)} FMC_NWAIT valid after FMC_CLK high
0
1. C_L = 30 pF.
2. Guaranteed by characterization results.
-
ns
-
ns
-
ns
-
ns
Figure 60. Synchronous multiplexed PSRAM write timings
TW#,+
TW#,+
"53452.
&-#?#,+
&-#?.%X
TD#,+, .!$6,
$ATALATENCY
TD#,+, .%X,
TD#,+, .!$6(
TD#,+( .%X(
&-#?.!$6
&-#?!;=
TD#,+, !6
TD#,+, .7%,
TD#,+( !)6
TD#,+( .7%(
&-#?.7%
TD#,+, !$6
TD#,+, !$)6
TD#,+, $ATA
TD#,+, $ATA
&-#?!$;=
!$;=
$
$
&-#?.7!)4
7!)4#&'B
7!)40/,B
&-#?.",
TSU.7!)46 #,+(
TH#,+( .7!)46
TD#,+( .",(
-36
DocID024030 Rev 9
177/238
197