251407-13 Datasheet, PDF (20/46 Pages) Numonyx B.V – Wireless Flash Memory (W18/W30 SCSP)

32WQ and 64WQ Family with Asynchronous RAM
7.0
7.1
7.2
AC Characteristics
Flash AC Characteristics
Refer to the Numonyx Wireless Flash Memory (W18) Datasheet (order number 290701)
and Numonyx Wireless Flash Memory (W30) Datasheet (order number 290702)
SRAM AC Characteristics
Table 9: SRAM AC Characteristics
#
Symbol¹
Parameter
Min Max Unit
Notes
R1
R2
R3
R3
R4
R5
R6
R7
R8
R9
R10
t_RC
Read Cycle Time
70
–
ns
1
t_AA
Address to Output Delay
–
70
ns
1
t_CO1
S-CS1# to Output Delay
–
70
ns
1
t_CO2
S-CS2 to Output Delay
–
70
ns
1
t_OE
R-OE# to Output Delay
–
35
ns
1
t_BA
R-UB#, R-LB# to Output Delay
–
70
ns
1
t_LZ
S-CS1# or S-CS2 to Output in Low-Z
5
–
ns
1,3,4
t_OLZ
R-OE# to Output in Low-Z
0
–
ns
1,4
t_HZ
S-CS1# or S-CS2 to Output in High-Z
0
25
ns
1,2,3,4
t_OHZ
R-OE# to Output in High-Z
0
25
ns
1,2,4
Output Hold (from Address, S-CS1#, S-CS2 or R-OE# Change,
t_OH
whichever occurs first)
0
–
ns
1
R11
t_BLZ
R-UB#, R-LB# to Output in Low-Z
0
–
ns
1,4
R12
t_BHZ
R-UB#, R-LB# to Output in High-Z
0
25
ns
1,4
Note:
1.
2.
3.
4.
See Figure 5, “AC Waveform SRAM Read Operations” .
Timings of t_HZ and t_OHZ are defined as the time at which the outputs achieve the open circuit conditions and are not
referenced to output voltage levels.
At any given temperature and voltage condition, t_HZ (Max) is less than t_LZ (Max) both for a given device and from device
to device interconnection.
Sampled, but not 100% tested.
Datasheet
20
November 2007
Order Number: 251407-13