參數(shù)資料
型號(hào)： MC145421P
廠(chǎng)商： MOTOROLA INC
元件分類(lèi)： 數(shù)字傳輸電路
英文描述： ISDN Universal Digital Loop Transceivers II
中文描述： DATACOM, ISDN CONTROLLER, PDIP24
封裝： PLASTIC, DIP-24
文件頁(yè)數(shù)： 4/16頁(yè)
文件大?。?/td> 268K
代理商： MC145421P
MC145421
MC145425
4
MOTOROLA
ABSOLUTE MAXIMUM RATINGS
(Voltage Referenced to VSS)
Rating
Symbol
Value
Unit
DC Supply Voltage
VDD – VSS
V
– 0.5 to 6.5
V
Voltage Any Pin to VSS
DC Current, Any Pin (Excluding VDD,
VSS)
– 0.5 to VDD + 0.5
±
10
V
I
mA
Operating Temperature
TA
Tstg
– 40 to + 85
°
C
Storage Temperature
– 85 to + 150
°
C
RECOMMENDED OPERATING CONDITIONS
(TA = – 40 to + 85
°
C
)
Parameter
Pins
Min
Typ
Max
Unit
DC Supply Voltage
VDD
MSI
4.5
5.0
5.5
V
Frame Rate MC145421 (See Note)
—
8.0
—
kHz
MC145421/25 Frame Slip Rate (See Note)
—
—
—
0.25
%
CCI Clock Frequency
—
—
8.192
8.29
MHz
TDC/RDC Data Clocks (for Master)
—
0.128
—
4.1
MHz
DCLK
—
0.016
—
4.1
MHz
Modulation Baud Rate (CCI/16)
LO1, LO2
—
512
—
kHz
NOTE: The slave’s crystal frequency divided by 1024 must equal the master’s MSI frequency
±
0.25% for optimum operation. Also, the
8.192 MHz input at the master divided by 1024 must be within 0.048% of the master’s 8 kHz MSI clock frequency.
DIGITAL CHARACTERISTICS
(VDD = 5 V, TA = – 40 to + 85
°
C)
Parameter
Min
Max
Unit
Input High Level
3.5
—
V
Input Low Level
—
1.5
V
Input Current, VDD
Input Current (Digital Pins)
—
15
mA
—
5
μ
A
Input Capacitance
—
10
pF
Output High Current (Except Tx on Master and Slave, and PD on the Slave)
VOH = 2.5
VOH = 4.6
VOH = 2.5
VOH = 4.6
VOH = 2.5
VOL = 0.4
VOL = 0.8
VOL = 0.4
VOL = 0.8
VOL = 0.4
– 1.7
– 0.36
—
—
mA
Tx Output High Current
– 3.4
– 0.7
—
—
mA
PD (Slave) Output High Current (See Note)
—
– 90
μ
A
Output Low Current (Except Tx on Master and Slave, and PD on Slave)
0.36
0.8
—
—
mA
Tx Output Low Current
1.7
3.5
—
—
mA
PD (Slave) Output Low Current (See Note)
30
60
μ
A
k
μ
A
μ
A
Tx Three–State Impedance
100
—
XTL Output High Current
VOH = 4.6
VOH = 0.4
—
– 450
XTL Output Low Current
450
—
NOTE: To overdrive PD from a low level to 3.5 V, or a high level to 1.5 V requires a minimum of
±
800
μ
A drive capability.
ANALOG CHARACTERISTICS
(VDD = 5 V, TA = 0 to 70
°
C)
Parameter
Min
Max
Unit
Modulation Differential Amplitude RL = 880
(LO1 – LO2)
4.6
—
Vpeak
Modulation Differential DC Offset
—
40
mV
Vref Voltage (Typically 9/20 (VDD – VSS))
PCM Tone Level
2.0
2.5
V
– 22
– 18
dBm
Demodulator Input Amplitude
50
—
mVpeak
Demodulator Input Impedance (LI to Vref)
75
300
k
This device contains circuitry to protect the
inputs against damage due to high static
voltages or electric fields; however, it is
advised that normal precautions be taken to
avoid applications of any voltage higher than
maximum rated voltages to this high imped-
ance circuit. For proper operation it is recom-
mended that Vin and Vout be constrained to
the range VSS
≤
(Vin or Vout)
≤
VDD. Reliability
of operation is enhanced if unused inputs are
tied to an appropriate logic voltage level (e.g.,
either VSS or VDD).
相關(guān)PDF資料
PDF描述
MC145425DW ISDN Universal Digital Loop Transceivers II
MC145425P ISDN Universal Digital Loop Transceivers II
MC145421 Universal Digital-Loop Transceiver2(通用數(shù)字回路收發(fā)器)
MC145425 Universal Digital-Loop Transceiver2(通用數(shù)字回路收發(fā)器)
MC145428L Data Set Interface Asynchronous-To-Synchronous Synchronous-To-Asynchronous Converter
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC145423DT 功能描述:IC TXRX UDLT/ISDN 28TSSOP RoHS:否 類(lèi)別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類(lèi)型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類(lèi)型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR)
MC145423EG 制造商:Freescale Semiconductor 功能描述:DATACOM, DIGITAL SLIC, 28 Pin Plastic SMT
MC145423EGR2 制造商:Freescale Semiconductor 功能描述:DATACOM, DIGITAL SLIC, 28 Pin Plastic SMT
MC145423EJ 功能描述:IC TXRX UDLT/ISDN 28-TSSOP RoHS:是 類(lèi)別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:25 系列:- 類(lèi)型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:4.5 V ~ 5.5 V 安裝類(lèi)型:通孔 封裝/外殼:16-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:16-PDIP 包裝:管件
MC145425P 制造商:Motorola Inc 功能描述:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠(chǎng)商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*