參數(shù)資料
型號(hào): HCT259
廠商: NXP Semiconductors N.V.
英文描述: Zener Diode; Zener Voltage Typ, Vz:2.7V; Vz Test Current, Izt:20mA; Power Dissipation, Pd:500mW; Package/Case:DO-35; Breakdown Voltage Max:2.7V; Forward Current:200A; Leakage Current Max:100uA; Mounting Type:Through Hole
中文描述: 8位可尋址鎖存器
文件頁(yè)數(shù): 14/20頁(yè)
文件大小: 95K
代理商: HCT259
2000 Mar 14
14
Philips Semiconductors
Product specification
8-bit addressable latch
74AHC259; 74AHCT259
handbook, halfpage
MNA548
MR input
Qn output
tPHL
tW
VM
(2)
VOH
VCC
GND
VOL
VM
(1)
Fig.8
The conditional reset input (MR) to output
(Qn) propagation delays.
FAMILY
V
I
INPUT
REQUIREMENTS
V
M(1)
INPUT
V
M(2)
OUTPUT
AHC
AHCT
GND to V
CC
GND to 3.0 V
50% V
CC
1.5 V
50% V
CC
50% V
CC
handbook, halfpage
MNA550
An input
LE input
tsu
th
GND
ADDRESS STABLE
VM
(1)
VM
(1)
VCC
GND
Fig.9
The address set-up and hold time for
An inputs to LE input.
FAMILY
V
I
INPUT
REQUIREMENTS
V
M(1)
INPUT
AHC
AHCT
GND to V
CC
GND to 3.0 V
50% V
CC
1.5 V
The shaded areas indicate when the input is permitted to change for
predictable output performance.
Fig.10 The data set-up and hold time for D input to LE input.
FAMILY
V
I
INPUT
REQUIREMENTS
V
M(1)
INPUT
V
M(2)
OUTPUT
AHC
AHCT
GND to V
CC
GND to 3.0 V
50% V
CC
1.5 V
50% V
CC
50% V
CC
The shaded areas indicate when the input is permitted to change
for predictable output performance.
handbook, full pagewidth
MNA549
GND
GND
th
tsu
th
tsu
VM
(1)
VM
(1)
VM
(2)
VCC
VOH
VOL
VCC
Qn output
LE input
D input
Q = D
Q = D
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