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74F826 データシート(Datasheet) 2 Page - NXP Semiconductors

部品番号. 74F826
部品情報  Bus interface registers
ダウンロード  18 Pages
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メーカー  PHILIPS [NXP Semiconductors]
ホームページ  http://www.nxp.com
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Philips Semiconductors
Product specification
74F821/822/823/824/825/826
Bus interface registers
2
1996 Jan 05
853-1304 16195
74F821
10-bit bus interface register, non-inverting (3-State)
74F822
10-bit bus interface register, inverting (3-State)
74F823
9-bit bus interface register, non-inverting (3-State)
74F824
9-bit bus interface register, inverting (3-State)
74F825
8-bit bus interface register, non-inverting (3-State)
74F826
8-bit bus interface register, inverting (3-State)
FEATURES
High speed parallel registers with positive edge-triggered D-type
flip-flops
High performance bus interface buffering for wide data/address
paths or busses carrying parity
High impedance PNP base inputs for reduced loading (20µA in
high and low states)
I
IL is 20µA vs 1000µA for AM29821 series
Buffered control inputs to reduce AC effects
Ideal where high speed, light loading, or increased fan-in as
required with MOS microprocessor
Positive and negative over-shoots are clamped to ground
3-State outputs glitch free during power-up and power-down
Slim Dip 300 mil package
Broadside pinout compatible with AMD AM 29821-29826 series
Outputs sink 64mA and source 24mA
Industrial temperature range available (–40°C to +85°C) for
74F823
DESCRIPTION
The 74F821 series bus interface registers are designed to
eliminate the extra packages required to buffer existing registers and
provide extra data width for wider data/address paths of busses
carrying parity.
The 74F821/74F822 are buffered 10-bit wide versions of the popular
74F374/74F534 functions.
The 74F822 is the inverted output version of 74F821.
The 74F823 and 74F824 are 9-bit wide buffered registers with clock
enable (CE) and master reset (MR) which are ideal for parity bus
interfacing in high microprogrammed systems.
The 74F824 is the inverted version of 74F823.
The 74F825 and 74F826 are 8-bit buffered registers with all the
74F823/74F824 controls plus output enable (OE0, OE1, OE2) to
allow multiuser control of the interface, e.g., CS, DMA, and RD/WR.
They are ideal for uses as an output port requiring high IOL/IOH.
The 74F826 is the inverted version of 74F825.
TYPE
TYPICAL
fmax
TYPICAL
SUPPLY CURRENT
(TOTAL)
74F821, 74F822
180MHz
75mA
74F823, 74F824
180MHz
70mA
74F825, 74F826
180MHz
65mA
ORDERING INFORMATION
ORDER CODE
DESCRIPTION
COMMERCIAL RANGE
VCC = 5V ±10%,
Tamb = 0°C to +70°C
INDUSTRIAL RANGE
VCC = 5V ±10%,
Tamb = –40°C to +85°C
PKG. DWG. #
24-pin plastic slim DIP (300mil)
N74F821N, N74F822N, N74F823N,
N74F824N, N74F825N, N74F826N
I74F823N
SOT222-1
24-pin plastic SOL
N74F821D, N74F822D, N74F823D,
N74F824D, N74F825D, N74F826D
I74F823D
SOT137-1




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