參數(shù)資料
型號(hào)： BT16374BDL
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： 通用總線(xiàn)功能
英文描述： 16-bit D-type flip-flop; positive-edge trigger 3-State
中文描述： ABT SERIES, DUAL 8-BIT DRIVER, TRUE OUTPUT, PDSO48
封裝： 7.50 MM, PLASTIC, SOT-370-1, SSOP3-48
文件頁(yè)數(shù)： 2/10頁(yè)
文件大?。?/td> 86K
代理商： BT16374BDL
Philips Semiconductors
Product specification
74ABT16374B
74ABTH16374B
16-bit D-type flip-flop; positive-edge trigger
(3-State)
2
1998 Feb 27
853-1752 19027
FEATURES
Two 8-bit positive edge triggered registers
Live insertion/extraction permitted
Power-up 3-State
Power-up reset
Multiple V
CC
and GND pins minimize switching noise
3-State output buffers
74ABTH16373B incorporates bus-hold data inputs which
eliminate the need for external pull-up resistors to hold unused
inputs
Bus-hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
Output capability: +64mA/–32mA
Latch-up protection exceeds 500mA per JEDEC Std 17
ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
DESCRIPTION
The 74ABT16374B high-performance BiCMOS device combines
low static and dynamic power dissipation with high speed and high
output drive.
The 74ABT16374B has two 8-bit, edge triggered registers, with each
register coupled to eight 3-State output buffers. The two sections of
each register are controlled independently by the clock (nCP) and
Output Enable (nOE) control gates.
Each register is fully edge triggered. The state of each D input, one
set-up time before the Low-to-High clock transition, is transferred to
the corresponding flip-flop’s Q output.
The 3-State output buffers are designed to drive heavily loaded
3-State buses, MOS memories, or MOS microprocessors. Each
active-Low Output Enable (nOE) controls all eight 3-State buffers for
its register independent of the clock operation.
When nOE is Low, the stored data appears at the outputs for that
register. When nOE is High, the outputs for that register are in the
High-impedance “OFF” state, which means they will neither drive
nor load the bus.
Two options are available, 74ABT16374B which does not have the
bus-hold feature and 74ABTH16374B which incorporates the
bus-hold feature.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
T
amb
= 25
°
C; GND = 0V
TYPICAL
UNIT
t
PLH
t
PHL
C
IN
C
OUT
I
CCZ
I
CCL
Propagation delay
nCP to nQx
Input capacitance
Output capacitance
C
L
= 50pF; V
CC
= 5V
2.6
2.2
4
7
500
8
ns
V
I
= 0V or V
CC
V
O
= 0V or V
CC
; 3-State
Outputs disabled; V
CC
= 5.5V
Outputs Low; V
CC
= 5.5V
pF
pF
μ
A
mA
Quiescent supply current
ORDERING INFORMATION
PACKAGES
48-Pin Plastic SSOP Type III
48-Pin Plastic TSSOP Type II
48-Pin Plastic SSOP Type III
48-Pin Plastic TSSOP Type II
TEMPERATURE RANGE
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
–40
°
C to +85
°
C
OUTSIDE NORTH AMERICA
74ABT16374B DL
74ABT16374B DGG
74ABTH16374B DL
74ABTH16374B DGG
NORTH AMERICA
BT16374B DL
BT16374B DGG
BH16374B DL
BH16374B DGG
DWG NUMBER
SOT370-1
SOT362-1
SOT370-1
SOT362-1
PIN DESCRIPTION
PIN NUMBER
SYMBOL
FUNCTION
47, 46, 44, 43, 41, 40, 38, 37
36, 35, 33, 32, 30, 29, 27, 26
1D0 – 1D7
2D0 – 2D7
Data inputs
2, 3, 5, 6, 8, 9, 11, 12
13, 14, 16, 17, 19, 20, 22, 23
1Q0 – 1Q7
2Q0 – 2Q7
Data outputs
1, 24
1OE, 2OE
Output enable
inputs (active-Low)
48, 25
1CP, 2CP
Clock pulse inputs
(active rising edge)
4, 10, 15, 21, 28, 34, 39, 45
GND
Ground (0V)
7, 18, 31, 42
V
CC
Positive supply
voltage
LOGIC SYMBOL
3
2
1Q0 1Q1 1Q2
6
5
1Q3
47
46
44
43
1D0 1D1 1D2 1D3
1CP
48
1
9
8
1Q4 1Q5 1Q6
12
11
1Q7
41
40
38
37
1D4 1D5 1D6 1D7
1OE
14
13
17
16
36
35
33
32
25
24
20
19
23
22
30
29
27
26
2Q0 2Q1 2Q2 2Q3
2D02D212D2 2D3
2CP
2Q4 2Q5 2Q6 2Q7
2D4 2D5 2D6 2D7
2OE
SH00078
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