|
Details, datasheet, quote on part number:HD-6409/883
| |
Datasheet text preview:
TM
HD-6409/883
CMOS Manchester Encoder-Decoder
Description
The HD-6409/883 Manchester Encoder-Decoder (MED) is a high speed, low power device manufactured using selfaligned silicon gate technology. The device is intended for use in serial data communication, and can be operated in either of two modes. In the converter mode, the MED converts Nonreturn-to-Zero code (NRZ) into Manchester code and decodes Manchester code into Nonreturn-to-Zero code. For serial data communication, Manchester code does not have some of the deficiencies inherent in Nonreturn-to-Zero code. For instance, use of the MED on a serial line eliminates DC components, provides clock recovery, and gives a relatively high degree of noise immunity. Because the MED converts the most commonly used code (NRZ) to Manchester code, the advantages of using Manchester code are easily realized in a serial data link. In the Repeater mode, the MED accepts Manchester code input and reconstructs it with a recovered clock. This minimizes the effects of noise on a serial data link. A digital phase lock loop generates the recovered clock. A maximum data rate of 1MHz requires only 50mW of power. Manchester code is used in magnetic tape recording and in fiber optic communication, and generally is used where data accuracy is imperative. Because it frames blocks of data, the HD-6409/883 easily interfaces to protocol controllers.
March 1997
Features
· This Circuit is Processed in Accordance to MIL-STD883 and is Fully Conformant Under the Provisions of Paragraph 1.2.1. · Converter or Repeater Mode · Independent Manchester Encoder and Decoder Operation · Static to One Megabit/Sec Data Rate Guaranteed · Low Bit Error Rate · Digital PLL Clock Recovery · On Chip Oscillator · Low Operating Power: 50mW Typical at +5V · Available in 20 Lead Dual-In-Line and 20 Pad LCC Package
Ordering Information
PAR T NUMBER HD1-6409/883 HD4-6409/883 TEMPERATU RE RANGE -55oC to +125oC -55oC to +125oC PACKAGE CERDIP CLCC PKG. NO. F20.3 J20.A
Pinouts
HD1- 6409/883 (CERDIP) TOP VIEW HD4-6409/883 (CLCC) TOP VIEW
BZ I BOI UDI S D /CDS S DO SRST NVM DCL K RST
1 2 3 4 5 6 7 8 9
20 VCC 19 BOO 18 BZO 17 SS 16 ECLK 15 CTS 14 MS 13 OX 12 IX 11 CO S D /CDS S DO SRST NVM DCLK 4 5 6 7 8
3
2
1
20
BO O 19 18 BZO 17 SS 16 ECLK 15 CTS 14 MS 13 OX
GND 10
9 RST
10 G ND
11 CO
IX
V CC 12
BO I
UD I
BZ I
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2002. All Rights Reserved
FN2959.1
135
HD-6409/883 Block Diagram
SDO NVM BO I BZ I UDI E DG E DETECTOR RST SD/CDS RESET SD INPUT/ OUTPUT SELECT MANCHESTER ENCODER DAT A INPUT LOGIC 5-BI T SHIFT REGISTER AND DECODER COMMAND SYNC GENERATOR OUTPUT SELECT LOGIC BO O BZ O CT S
SRST
MS IX OX CO SS OSC ILLATOR COUNTER CIRCUIT S ECLK DCL K
Logic Symbol
17 11 13 12
SS CO
CLOCK GENERATOR
OX IX
S D /CDS ECLK
4 16 ENCODER
19 18 15
BO O BZ O CT S
MS RS T S DO DCL K NVM SRST
14 9 5 8 7 6 CONTROL 2 1 3 BO I BZ I UDI
DECODER
136
HD-6409/883
Absolute Maximum Ratings
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7.0V Input, Output or I/O Voltage Applied. . . . . GND -0.5V to VCC +0.5V ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 1
Thermal Information
Thermal Resistance JA ( oC/W) JC (oC/W) CERD IP Package . . . . . . . . . . . . . . . . 83 23 CLCC Package . . . . . . . . . . . . . . . . . . 95 26 Storage Temperature Range . . . . . . . . . . . . . . . . .-65oC to +150oC Maximum Junction Temperature. . . . . . . . . . . . . . . . . . . . . . +175oC Maximum Lead Temperature (Soldering 10s). . . . . . . . . . . . +300oC
Operating Conditions
Operating Temperature Range. . . . . . . . . . . . . . . . -55oC to +125oC Operating Voltage Range . . . . . . . . . . . . . . . . . . . . . +4.5V to +5.5V Input Rise and Fall Times. . . . . . . . . . . . . . . . . . . . . . . . . . 50ns Max Sync. Transition Span (t2) . . . . . . . . . 1.5 DBP Typical, (Notes 1, 2) Short Data Transition Span (t4) . . . . . 0.5 DBP Typical, (Notes 1, 2) Long Data Transition Span (t5) . . . . . 1.0 DBP Typical, (Notes 1, 2) Zero Crossing Tolerance (tCD5) . . . . . . . . . . . . . . . . . . . . . ( Note 3)
Die Characteristics
Gate Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 Gates
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES : 1. DBP - Data Bit Period. Clock Rate = 16X, one DBP = 16 Clock Cycles; Clock Rate = 32X; one DBP = 32 Clock Cycles. 2. The input conditions specified are nominal values, the actual input waveforms transition spans may vary by ±2 IX clock cycles (16X mode) or ±6 IX clock cycles (32X mode). 3. The maximum zero crossing tolerance is ±2 IX clock cycles (16X mode) or ±6 IX clock cycles (32X mode) from the nominal. TAB LE 1. HD-6409/883 DC ELECTRICAL PERFORMANCE SPECIFICATIONS Device Guaranteed and 100% Tested GROUP A SUBGROUPS 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 1, 2, 3 LIMITS TEMPERATURE - 55oC TA +125oC - 55oC TA +125oC - 55oC TA +125oC - 55oC TA +125oC - 55oC TA +125oC - 55oC TA +125oC - 55oC TA +125oC MIN 70% VCC VCC -0.5 VCC -0.5 -1.0 MAX 20% VCC GND +0.5 GND +0.5 +1.0 UNITS V V V V V V µA
PARAMETER Logic "1" Input Voltage Logic "0" Input voltage Logic "1" Input Voltage (RST) Logic "0" Input Voltage (RST) Logic "1" Input Voltage (IX) Logic "0" Input Voltage (IX) Input Leakage Current ( Except IX) Input Leakage Current (IX)
SYMBOL VIH VIL VIH R VILR VIH C VlLC II
CONDITIONS V CC = 4.5V VCC = 4.5V V CC = 5.5V V CC = 4.5V V CC = 5.5V V CC = 4.5V VIN = VCC or GND VCC = 5.5V V lN = VCC or GND VCC = 5.5V VOUT = VCC or GND VCC = 5.5V IOH = -2.0mA VCC = 4.5V ( Note 1) IOL = +2.0mA VCC = 4.5V (Note 1)
II
1, 2, 3
- 55oC TA +125oC
-2 0
+20
µA
I/O Leakage Current
IO
1, 2, 3
- 55oC TA +125oC
-1 0
+10
µA
Output HIGH Voltage ( All except OX) Output LOW Voltage ( All except OX)
VOH
1, 2, 3
- 55oC TA +125oC
VCC -0.4
-
V
V OL
1, 2, 3
- 55oC TA +125oC
-
0.4
V
137
|
|
