STW4811M STMicroelectronics, STW4811M Datasheet - Page 74

• Manufacturer Part Number: STW4811M
• Description: Power Management For Multimedia Processors
• Manufacturer: STMicroelectronics

Electrical and timing characteristics
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Table 52.
1. Guaranteed by design
2. MMC interface pull up resistors are in EMIF06-HCM01F2 device (7 KΩ for CMD; 75 KΩ for Data wires)
3. 20 pF for equivalent board parasitic capacitance.
4. 20 pF for EMIF06 protection + 20 pF for board parasitic capacitance.
VMMC regulator specifications (’pdn_vmmc’ = 1)
L
t
t
Bus line specifications
RA
RB
f
f
T
T
T
T
T
T
C1
C2
S
D
DT
ID
DRT
Symbol
PHC
PCH
SHC
SCH
R
F
LINE
LINE
(2)
Transient load
regulation
Settling time
OFF->ON
Discharge time
ON>OFF
Pull-up resistor
Pull-down resistor
Clock frequency
data transfert
mode
Clock frequency
identification mode
Propagation time
from Host to card
Propagation time
from card to host
Clock /data skew
time from host to
card
Clock /data skew
time from card to
host
Rise time
Fall time
Between host and
STw4811
Between STw4811
and MMC card
SD/MMC/SDIO card interface (continued)
Description
I
t
I
I
To prevent bus from
floating
To prevent bus from
floating
With CL = 30pF
With CL = 30pF
Figure 15
Figure 15
Figure 15
Reference is
CLKOUT
Figure 15
Reference is
MMCLK
Bus line
capacitance
f < 52 MHz
Bus line
capacitance
f < 52 MHz
OUT
R
OUT
OUT
Test conditions
= t
= [1; 150] mA
F
= 0 mA
= 0 mA
= 1 µs
Min.
+/- 0.5
+/- 0.5
Typ.
1.5
1.5
25
7
7
STw4811M/STw4811N
20 + 20
Max.
20
100
400
52
1
3
3
(3)
(4)
Units
MHz
kHz
mV
MΩ
MΩ
ms
pF
pF
µs
ns
ns
ns
ns
ns
ns