r8a66174sp Renesas Electronics Corporation., r8a66174sp Datasheet - Page 8

• Manufacturer Part Number: r8a66174sp
• Description: Parallel-in Serial-out Data Buffer With Fifo
• Manufacturer: Renesas Electronics Corporation.

R8A66174SP
TIMING REQUIREMENTS (Ta=-40~85
SWITCHING CHARACTERISTICS(Ta=-40~85
REJ03F0278-0101 Rev.1.01 Oct.06.2008
Page 8 of 11
tw(Φ)
tw(/W)
tw(/R)
t
t
t
t
trec(/W)
trec(/INT-/W)
trec(/R-/W)
Note 10 : Increase of the input rise time (tr) and fall time (tf) of clock input Φ may cause misoperation.
tc(Φ)
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Note 11 : T=(1/Φ)×(1/division ratio) [ns]
su
h
su
h
PLH
PLH
PLH
PHL
PLH
PHL
PLH
PLH
PLH
PHL
PHL
PLH
PHL
TLH
THL
TLH
THL
(/W-D)
(/W-A)
(D-/W)
(A-/W)
Symbol
Symbol
(/W-/INT)
(/R-/INT)
(/W-/OE)
(/W-/OE)
(/W-LA)
(/W-LA)
(/W-SC)
(Φ-SC)
(Φ-SD)
(Φ-SD)
(Φ-/INT)
(/R-/OE)
(/R-LA)
12 : AC test waveform
Input pulse level
Input pulse rise time
Input pulse fall time
Reference voltage
tr, tf : These are recommended to be 20ns or less.
Input voltage
Output voltage
Clock pulse width
Write pulse width
Reset pulse width
Data setup time before write
Data hold time after write
Address setup time before write
Address hold time after write
Write recovery time
Write recovery time after /INT
Write recovery time after reset
Clock Cycle
Propagation time between write and /INT
Propagation time between /RESET and /INT
Propagation time between write and /OE
Propagation time between write and LATCH
Propagation time between write and SCLK
Propagation time between Φ and SCLK
Propagation time between Φ and SDATA
Propagation time between Φ and /INT
Propagation time between /RESET and /OE
Propagation time between /RESET and LATCH
Low to high level output transition time (/INT)
High to low level output transition time (/INT)
Low to high level output transition time
(SCLK, SDATA, /OE, LATCH)
High to low level output transition time
(SCLK, SDATA, /OE, LATCH)
Parameter
Parameter
0~Vcc
6ns
6ns
0.5XVcc
0.5XVcc
Test condition
Test condition
CL=150pF
C
o
C
C
L
C, Vcc=4.5~5.5V or 3.0~3.6V)
L
L
=150pF
=50pF
=50pF
o
C, Vcc=4.5~5.5V or 3.0~3.6V)
1×T
Min
100
100
100
100
100
Min
100
50
50
0
0
0
Limits for 5.0V
Limits for 5.0V
Typ
Typ
－
2×T+100
Max
Max
100
100
100
100
100
100
100
100
100
100
100
100
25
25
25
25
120
120
120
120
120
120
1×T
Min
Min
60
60
0
0
0
Limits for 3.3V
Limits for 3.3V
Typ
Typ
－
2×T+120
Max
Max
120
120
120
120
120
120
120
120
120
120
120
120
30
30
30
30
単位
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns