Toshiba TMP92CM22FG, TLCS-900 TMP92CM22 , 2007-02-16 92CM22-222, 4.2.2 Page ROM Read Cycle

TMP92CM22
2007-02-16
92CM22-222
4.2.2 Page ROM Read Cycle
(1) 3-2-2-2 mode
Vcc = 3.3 ± 0.3 V/fc = 4 to 40 MHz/Ta = −40 to 85°C
No. Parameter Symbol Min Max fSYS =
20 MHz
(fc = 40 MHz)
fSYS =
125 kHz
(fc = 4 MHz) Unit
1 System clock period ( = T) tCYC 50 8000 50 8000 ns
2 A0, A1 → D0 to D31 input tAD2 2.0T − 50 50 15950 ns
3 A2 to A23 → D0 to D31 input tAD3 3.0T − 50 100 23950 ns
4 RD falling → D0 to D31 input tRD3 2.5T − 45 80 19955 ns
5 A0 to A23 invalid → D0 to D31 hold tHA 0 0 0 ns
6 RD rising → D0 to D31 hold tHR 0 0 0 ns
AC condition
• Output: High = 0.7 Vcc, Low = 0.3 Vcc, CL = 50 pF
• Input: High = 0.9 Vcc, Low = 0.1 Vcc
(2) Page ROM read cycle (3-2-2-2 mode)
tH
A
Data
in
p
ut Data in
p
ut Data in
p
ut
Data
input
tCYC
A
0 to
A
23
CLKOUT
D0 to D31
RD
CS2
+0
+
1
+
2+3
tAD3 tAD2 tAD2 tAD2
tHR
tH
A
tH
A
tH
A
tAD3