8 Mbit Firmware Hub
A Microchip Technology Company
SST49LF008A
Data Sheet
Table 18: AC Input/Output Specifications, V DD =3.0-3.6V (FWH Mode)
Limits
Symbol
Parameter
Min
Max
Units Test Conditions
I OH (AC)
Switching Current High
-12 V DD
-17.1(V DD -V OUT )
mA
mA
0 < V OUT ? 0.3V DD
0.3V DD < V OUT < 0.9V DD
Equation C 1
0.7V DD < V OUT <V DD
(Test Point)
-32 V DD
mA
V OUT =0.7V DD
I OL (AC)
Switching Current Low
16 V DD
Equation D 1
mA
V DD >V OUT ? 0.6V DD
26.7 V OUT
mA
0.6V DD > V OUT > 0.1V DD
0.18V DD > V OUT > 0
(Test Point)
38 V DD
mA
V OUT =0.18V DD
I CL
I CH
Low Clamp Current
High Clamp Current
-25+(V IN +1)/0.015
25+(V IN -V DD -1)/0.015
mA
mA
-3 < V IN ? -1
V DD +4 > V IN ? V DD +1
slewr 2
slewf 2
Output Rise Slew Rate
Output Fall Slew Rate
1
1
4
4
V/ns
V/ns
0.2V DD -0.6V DD load
0.6V DD -0.2V DD load
T18.3 25085
1. See PCI spec.
2. PCI specification output load is used.
Table 19: Reset Timing Parameters, V DD =3.0-3.6V (FWH Mode)
Symbol
Parameter
Min
Max
Units
T PRST
T KRST
T RSTP
T RSTF
V DD stable to Reset Low
Clock Stable to Reset Low
RST# Pulse Width
RST# Low to Output Float
1
100
100
48
ms
μs
ns
ns
T RST
1
RST# High to FWH4 Low
1
μs
T RSTE
RST# Low to reset during Sector-/Block-Erase or Program
10
μs
T19.5 25085
1. There will be a latency of T RSTE if a reset procedure is performed during a Program or Erase operation.
?2011 Silicon Storage Technology, Inc.
26
DS25085A
10/11
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