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參數(shù)資料
| 型號： | M74HC40102B1R |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 計數(shù)器 |
| 英文描述： | HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 8-BIT DOWN DECADE COUNTER, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 659K |
| 代理商： | M74HC40102B1R |
1/16
September 2001
s
HIGH SPEED :
fMAX = 38MHz (TYP.) at VCC = 6V
s
LOW POWER DISSIPATION:
ICC =4A(MAX.) at TA=25°C
s
HIGH NOISE IMMUNITY:
VNIH = VNIL = 28 % VCC (MIN.)
s
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 4mA (MIN)
s
BALANCED PROPAGATION DELAYS:
tPLH tPHL
s
WIDE OPERATING VOLTAGE RANGE:
VCC (OPR) = 2V to 6V
s
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 40102
DESCRIPTION
The M74HC40102 is an high speed CMOS
8-STAGE
PRESETTABLE
SYNCHRONOUS
DOWN COUNTER fabricated with silicon gate
C2MOS technology.
The
HCF40102
consists
of
an
8
stage
synchronous down counter with a single output
which is active when the internal count is zero.
The HC40102 is configured as two cascaded 4-bit
BCD counters. This device has control inputs for
enabling or disabling the clock, for clearing the
counter to its maximum count, and for presetting
the
counter
either
synchronously
or
asynchronously.
All
control
inputs
and
the
CARRY-OUT / ZERO DETECT output are active
low logic. In normal operation the counter is
decremented by one count on each positive
transition of the CLOCK. Counting is inhibited
when the CARRY-IN / COUNTER ENABLE (CI/
CE)
input
is
high.
The
CARRY-OUT
/
ZERO-DETECT (CO/ZD) output goes low when
the count reaches zero if the CI/CE input is low,
and remains low for one full clock period. When
the SYNCHRONOUS PRESET-ENABLE (SPE)
input is low, data at the J input is clocked into the
counter on the next positive clock transition
regardless of the state of the CI/CE input.
When the ASYNCHRONOUS PRESET-ENABLE
(APE) input is low, data at the J inputs is
asynchronously forced into the counter regardless
of the state of the SPE CI/CE or CLOCK inputs. J
input J0-J7 represent two 4-bit BCD words. When
the CLEAR, CLR input is low, the counter is
M74HC40102
8 STAGE PRESETTABLE
SYNCHRONOUS DOWN COUNTER
PIN CONNECTION AND IEC LOGIC SYMBOLS
ORDER CODES
PACKAG
E
TUBE
T & R
DIP
M74HC40102B1R
SOP
M74HC40102M1R M74HC40102RM13TR
TSSOP
M74HC40102TTR
TSSOP
DIP
SOP
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M74HC40102C1R | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8 STAGE PRESETTABLE SYNCHRONOUS DOWN COUNTERS |
| M74HC40102F1R | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8 STAGE PRESETTABLE SYNCHRONOUS DOWN COUNTERS |
| M74HC40102M1R | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8 STAGE PRESETTABLE SYNCHRONOUS DOWN COUNTERS |
| M74HC40103 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8 STAGE PRESETTABLE SYNCHRONOUS DOWN COUNTERS |
| M74HC40103B1R | 功能描述:計數(shù)器移位寄存器 Preset Sync Dwn Cntr RoHS:否 制造商:Texas Instruments 計數(shù)器類型: 計數(shù)順序:Serial to Serial/Parallel 電路數(shù)量:1 封裝 / 箱體:SOIC-20 Wide 邏輯系列: 邏輯類型: 輸入線路數(shù)量:1 輸出類型:Open Drain 傳播延遲時間:650 ns 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝:Reel |
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