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参数资料
| 型号： | 74ALVT162821 |
| 厂商： | NXP Semiconductors N.V. |
| 英文描述： | 2.5V/3.3V 20-bit bus-interface D-type flip-flop; positive-edge trigger with 30Ω termination resistors(3-State)(带30 Ω终端电阻器2.5V/3.3V 20位总线接口上升沿触发D触发器（三态）) |
| 中文描述： | 2.5V/3.3V的20位总线接口D型触发器，积极与30Ω终端电阻（3态）（带30Ω终端电阻器2.5V/3.3V的20位总线接口上升沿触发沿触发?触发器（三态）） |
| 文件页数： | 2/12页 |
| 文件大小： | 97K |
| 代理商： | 74ALVT162821 |
Philips Semiconductors
Product specification
74ALVT162821
2.5V/3.3V 20-bit bus-interface D-type flip-flop;
positive-edge trigger with 30 termination resistors (3-State)
2
1998 Oct 02
853-2041 20127
FEATURES
Outputs include series resistance of 30 making external
termination resistors unnecessary
20-bit positive-edge triggered register
5V I/O Compatible
Multiple V
CC
and GND pins minimize switching noise
Live insertion/extraction permitted
Power-up reset
Power-up 3-State
Output capability
+
12mA/-12mA
Latch-up protection exceeds 500mA per Jedec Std 17
ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
Bus hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
DESCRIPTION
The 74ALVT162821 high-performance BiCMOS device combines
low static and dynamic power dissipation with high speed and high
output drive. It is designed for V
CC
operation at 2.5V or 3.3V with I/O
compatibility to 5V.
The 74ALVT162821 has two 10-bit, edge triggered registers, with
each register coupled to a 3-State output buffer. 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.
The active Low Output Enable (nOE) controls all ten 3-State buffers
independent of the register operation. When nOE is Low, the data in
the register appears at the outputs. When nOE is High, the outputs
are in high impedance “off” state, which means they will neither drive
nor load the bus.
The 74ALVT162821 is designed with 30 series resistance in both
High and Low output stages. This design reduces the line noise in
applications such as memory address drivers, clock drivers and bus
receivers/transmitters. The series termination resistors reduce
overshoot and undershoot and are ideal for driving memory arrays.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
T
amb
= 25
°
C
TYPICAL
UNIT
2.5V
3.3V
t
PLH
t
PHL
Propagation delay
nCP to nQ
C
L
= 50pF
4.4
3.8
3.2
3.2
ns
C
IN
Input capacitance
V
I
= 0V or V
CC
3
3
pF
C
OUT
Output capacitance
V
O
= 0 or V
CC
9
9
pF
I
CCZ
Total supply current
Outputs disabled
40
70
μ
A
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
DWG NUMBER
56-Pin Plastic SSOP Type III
–40
°
C to +85
°
C
74ALVT162821 DL
AV162821 DL
SOT371-1
56-Pin Plastic TSSOP Type II
–40
°
C to +85
°
C
74ALVT162821 DGG
AV162821 DGG
SOT364-1
相关PDF资料 |
PDF描述 |
|---|---|
| 74ALVT162823 | 18-bit bus-interface D-type flip-flop with reset and enable with 30Ω termination resistors (3-State)(带30 Ω终端电阻器的具有复位和使能的18位总线接口D触发器（三态）) |
| 74ALVT162827 | 20-bit buffer/line driver, non-inverting,with 30Ω termination resistors (3-State)(同相（三态）,带30 Ω终端电阻器的20位缓冲器/线驱动器) |
| 74ALVT16344 | 2.5V/3.3V 1-to-4 address driver 3-State |
| 74ALVT16344DL | 2.5V/3.3V 1-to-4 address driver 3-State |
| 74ALVT16344DGG | 2.5V/3.3V 1-to-4 address driver 3-State |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 74ALVT162821DG | 功能描述:触发器 20-BIT BUS INTERFACE 3-STATE RoHS:否 制造商:Texas Instruments 电路数量:2 逻辑系列:SN74 逻辑类型:D-Type Flip-Flop 极性:Inverting, Non-Inverting 输入类型:CMOS 输出类型: 传播延迟时间:4.4 ns 高电平输出电流:- 16 mA 低电平输出电流:16 mA 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:X2SON-8 封装:Reel |
| 74ALVT162821DGG | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:2.5V/3.3V 20-bit bus-interface D-type flip-flop; positive-edge trigger with 30ohm termination resistors 3-State |
| 74ALVT162821DGG,11 | 功能描述:触发器 20-BIT BUS INTERFACE RoHS:否 制造商:Texas Instruments 电路数量:2 逻辑系列:SN74 逻辑类型:D-Type Flip-Flop 极性:Inverting, Non-Inverting 输入类型:CMOS 输出类型: 传播延迟时间:4.4 ns 高电平输出电流:- 16 mA 低电平输出电流:16 mA 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:X2SON-8 封装:Reel |
| 74ALVT162821DGG,112 | 制造商:NXP Semiconductors 功能描述: |
| 74ALVT162821DGG,118 | 制造商:NXP Semiconductors 功能描述: |
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