at49lh00b4 ATMEL Corporation, at49lh00b4 Datasheet - Page 33

• Manufacturer Part Number: at49lh00b4
• Description: 4-megabit Top Boot, Bottom Partitioned Firmware Hub And Low-pin Count Flash Memory
• Manufacturer: ATMEL Corporation

24. Output Timing Parameters
25. Input Timing Parameters
26. Interface Measurement Condition Parameters
Note:
27. Reset Operations
Note:
3379C–FLASH–3/05
Symbol
V
V
V
V
Input Signal Edge Rate
Symbol
t
t
PLPH
PHFV
TH
TL
TEST
MAX
(1)
(1)
(1)
(1)
1. The input test environment is done with 0.1 V
1. A reset latency of 20 µs will occur if a reset procedure is performed during a programming or erase operation.
overdrive than this. V
testing may use different voltage values, but must correlate results back to these parameters.
Parameter
RST or INIT Pulse Low Time (If RST or INIT is tied to V
specification is not applicable)
RST or INIT High to FWH4/FRAME Low
(Valid Input Data)
FWH/LAD[3:0]
MAX
(Float Output Data)
(Valid Output Data)
specifies the maximum peak-to-peak waveform allowed for measuring the input timing. Production
CLK
FWH/LAD[3:0]
FWH/LDA[3:0]
CLK
CC
of overdrive over V
V
TEST
Inputs Valid
t
VAL
t
OFF
t
SU
CC
, this
t
IH
ON
and V
V
TEST
IL
0.6 V
0.2 V
0.4 V
0.4 V
. Timing parameters must be met with no more
Value
t
H
CC
CC
CC
CC
V
V
TH
TL
Min
100
1
1 V/ns
V
V
V
TH
TL
MAX
AT49LH00B4
Max
Units
V
V
V
V
Unit
ns
µs
33