Datasheet

©2011 Silicon Storage Technology, Inc. DS25085A 10/11
23
8 Mbit Firmware Hub
SST49LF008A
Data Sheet
A
Microchip Technology Company
DC Characteristics
Table 12:DC Operating Characteristics (All Interfaces)
Symbol Parameter
Limits
Test Conditions
1
1. Test conditions apply to PP mode.
Min Max
Unit
s
I
DD
Active V
DD
Current LCLK (FWH mode) and Address Input (PP
mode)=V
ILT
/V
IHT
at f=33 MHz (FWH mode)or1/
TRC
min
(PP Mode)
All other inputs=V
IL
or V
IH
Read 12 mA All outputs = open, V
DD
=V
DD
Max
Write
2
2. I
DD
active while Erase or Program is in progress.
24 mA See Note
3
3. For PP Mode: OE# = WE# = V
IH;
For FWH mode:f=1/T
RC
min, LFRAME# = V
IH,
CE# = V
IL.
I
SB
Standby V
DD
Current
(FWH Interface)
100 µA LCLK (FWH mode) and Address Input (PP
mode)=V
ILT
/V
IHT
at f=33 MHz (FWH mode)or1/
TRC min
(PP Mode)
LFRAME#=0.9 V
DD
, f=33 MHz, CE#=0.9 V
DD
,
V
DD
=V
DD
Max, All other inputs  0.9 V
DD
or  0.1
V
DD
I
RY
4
4. The device is in Ready Mode when no activity is on the FWH bus.
Ready Mode V
DD
Cur-
rent
(FWH Interface)
10 mA LCLK (FWH mode) and Address Input (PP
mode)=V
ILT
/V
IHT
at f=33 MHz (FWH mode)or1/
TRC min
(PP Mode)
LFRAME#=V
IL
, f=33 MHz, V
DD
=V
DD
Max
All other inputs 0.9 V
DD
or  0.1 V
DD
I
I
Input Current for IC,
ID [3:0] pins
200 µA V
IN
=GND to V
DD
,V
DD
=V
DD
Max
I
LI
Input Leakage Current 1 µA V
IN
=GND to V
DD
,V
DD
=V
DD
Max
I
LO
Output Leakage Cur-
rent
1µAV
OUT
=GND to V
DD
,V
DD
=V
DD
Max
V
IHI
5
5. Do not violate processor or chipset specification regarding INIT# voltage.
INIT# Input High Volt-
age
1.0 V
DD
+0.
5
VV
DD
=V
DD
Max
V
ILI
5
INIT# Input Low Volt-
age
-0.5 0.4 V V
DD
=V
DD
Min
V
IL
Input Low Voltage -0.5 0.3
V
DD
VV
DD
=V
DD
Min
V
IH
Input High Voltage 0.5
V
DD
V
DD
+0.
5
VV
DD
=V
DD
Max
V
OL
Output Low Voltage 0.1
V
DD
VI
OL
=1500µA, V
DD
=V
DD
Min
V
OH
Output High Voltage 0.9
V
DD
VI
OH
=-500 µA, V
DD
=V
DD
Min
T12.10 25085