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參數(shù)資料
| 型號： | M74HC259B1R |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 通用總線功能 |
| 英文描述： | 8 BIT ADDRESSABLE LATCH |
| 中文描述： | 8位可尋址鎖存 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 264K |
| 代理商： | M74HC259B1R |
M54HC259
M74HC259
October 1992
8 BIT ADDRESSABLE LATCH
B1R
(Plastic Package)
ORDER CODES :
M54HC259F1R
M74HC259B1R
M74HC259M1R
M74HC259C1R
F1R
(CeramicPackage)
M1R
(MicroPackage)
C1R
(Chip Carrier)
PIN CONNECTIONS
(top view)
NC =
No Internal
Connection
.
HIGH SPEED
t
PD
= 15 ns(TYP.) at V
CC
= 5 V
.
LOWPOWER DISSIPATION
I
CC
= 4
μ
A(MAX.) at T
A
= 25
°
C
.
HIGH NOISE IMMUNITY
V
NIH
= V
NIL
= 28 % V
CC
(MIN.)
.
OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
.
SYMMETRICAL PROPAGATION DELAYS
IOH
= I
OL
= 4 mA(MIN.)
.
BALANCEDPRORAGATION DELAYS
t
PLH
= t
PHL
.
WIDE OPERATING VOLTAGE RANGE
V
CC
(OPR) = 2 V to 6 V
.
PIN AND FUNCTION COMPATIBLE WITH
54/74LS259
DESCRIPTION
The M54/74HC259 is a high speed CMOS 8 BIT
ADDRESSABLE LATCH fabricated in silicon gate
C
2
MOStechnology.Ithas thesame highspeedper-
formance of LSTTL combined with true CMOS low
powerconsumption.
The M54HC259/M74HC259 has single data input
(D) 8 latch outputs (Q0-Q7), 3 address inputs (A,B,
and C), common enable input (E), and a common
CLEARinput.To operate this device asanaddress-
able latch, data is held on the D input, and the ad-
dressof thelatchintowhich thedataistobeentered
is held on the A, B, and C inputs. WhenENABLE is
taken low the data flows through to the addresses
output. The data is stored on the positive-going
edgeofthe ENABLE pulse. Allunaddressed latches
will remain unaffected. With ENABLE in the high
statethedeviceisdeselected and all latches remain
intheirprevious state,unaffected bychanges onthe
data or address inputs. To eliminate the possibility
of entering erroneous data into the latches, the EN-
ABLE should be held high (inactive) while the ad-
dresslinesarechanging. IfENABLE isheldhighand
CLEARis takenlow all eight latches are cleared to
the lowstate.IfENABLE islowall latchesexceptthe
addressed latch will be cleared. The addressed
latchwillinsteadfollowthe Dinput, effectivelyimple-
menting a 3-to8 line decoder.
All inputs are equipped with protection circuits
against static discharge and transient excess
voltage.
1/12
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| M74HC259M1R | 8 BIT ADDRESSABLE LATCH |
| M74HC273M1R | 12-Bit, 3 us DAC, Serial Input, Pgrmable Settling Time/Power Consump., Voltage O/P Range=2x VRef. 8-PDIP 0 to 70 |
| M74HC273RM13TR | OCTAL D TYPE FLIP FLOP WITH CLEAR |
| M74HC273TTR | 12-Bit, 3 us DAC, Serial Input, Pgrmable Settling Time/Power Consump., Voltage O/P Range=2x VRef. 8-SOIC -40 to 85 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M74HC259B1R | 制造商:STMicroelectronics 功能描述:IC 74HC CMOS 74HC259 DIP16 6V |
| M74HC259C1R | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8 BIT ADDRESSABLE LATCH |
| M74HC259M1R | 功能描述:閉鎖 8-Bit Addrsble Latch RoHS:否 制造商:Micrel 電路數(shù)量:1 邏輯類型:CMOS 邏輯系列:TTL 極性:Non-Inverting 輸出線路數(shù)量:9 高電平輸出電流: 低電平輸出電流: 傳播延遲時間: 電源電壓-最大:12 V 電源電壓-最小:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-16 封裝:Reel |
| M74HC259RM13TR | 功能描述:閉鎖 8-Bit Addrsble Latch RoHS:否 制造商:Micrel 電路數(shù)量:1 邏輯類型:CMOS 邏輯系列:TTL 極性:Non-Inverting 輸出線路數(shù)量:9 高電平輸出電流: 低電平輸出電流: 傳播延遲時間: 電源電壓-最大:12 V 電源電壓-最小:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-16 封裝:Reel |
| M74HC259TTR | 功能描述:閉鎖 8B ADDRESSABLE LATCH RoHS:否 制造商:Micrel 電路數(shù)量:1 邏輯類型:CMOS 邏輯系列:TTL 極性:Non-Inverting 輸出線路數(shù)量:9 高電平輸出電流: 低電平輸出電流: 傳播延遲時間: 電源電壓-最大:12 V 電源電壓-最小:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-16 封裝:Reel |
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