TMP92CZ26A

92CZ26A-658

4.3.4 NAND Flash Controller AC Characteristics

Variable
No. Symbol Parameter Min Max
80 MHz
(n=3)
(m=3)
60 MHz
(n=3)
(m=3)
Unit
1 tNC Access cycle (2 + n + m ) T 100 132
2 tRP NDRE low level width (1.5+ n) T − 12 45 63
3 tREA NDRE data access time (1.5
+ n) T − 15 41 60
4 tOH Read data hold time 0 0 0
5 tWP NDWE low level width (1.0 + n) T − 20 30 47
6 tDS Write data setup time (1.0 + n) T − 20 30 47
7 tDH Write data hold time (0.5 + m) T − 2 42 56
ns
AC measuring condition
Note1: The “n” in “Variable” means wait-numbe r which is set to N DFMCR0<SPLW1:0>, and “m” means number which is
set to NDFMCR0<SPHW1:0>.
Example: If NDFMCR0<SPLW1:0> is set to “01”, n=1, tRP = (1.5 + n) T − 12 = 2.5T − 12
Note2: In above variable, the setting that result is minus can not use.
Data input
SDCLK
A
0~A23
NDRE
NDWE
D0~D7
D0~D15
tRP
tRE
A
tOH
Read
c
y
cle
Data output
NDRE
NDWE
D0~D7
D0~D15
t
WP
tDH
Write
c
y
cle tDS
SPLW1:0="01" SPHW1:0="01"
tCYC