3-5-2. Parallel Mode, Register Write
HA0 to 3
XHCS
tSA
tWCSH
XHRW
XHDT
HD0 to 7
tDWA1
tHZQ2
output
CXD1852Q
tHA
tWWL1
tHW1
tSD1
input
tHD1
Item
Symbol Min.
Address setup time
Address hold time
tSA
20
tHA
20
Chip disable time
Write pulse width
Write pulse hold time
Wait signal delay time
HD output disable time (for WR)
HD input setup time
HD input hold time
tWCSH
20
tWWL1
60
tHW1
10
tDWA1
—
tHZQ2
—
tSD1
25
tHD1
25
∗1 Specified for the edge of XHCS or HRW, whichever is later.
∗2 Specified for the edge of XHCS or HRW, whichever is earlier.
∗3 Interval during which both XHCS and HRW are low.
∗4 Applies only to access resulting in wait status.
∗5 Do not apply data while output is enabled.
Max.
—
—
—
—
—
15
15
—
—
Unit Remarks
ns ∗1
ns ∗2
ns
ns ∗3
ns ∗2, ∗4
ns ∗1, ∗4
ns ∗5
ns ∗2
ns ∗2
–9–