hi-1575pqt Holt Integrated Circuits, Inc., hi-1575pqt Datasheet
hi-1575pqt
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hi-1575pqt Summary of contents
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... Pin Plastic 6mm x 6mm Chip-scale package RCVA - 1 BUSA - 2 BUSA - 3 VDD - 4 BUSB - 5 BUSB - 6 RCVB - 7 REG - 8 32 Pin TQFP package HOLT INTEGRATED CIRCUITS www.holtic.com HI-1575 1575PCI 26 GND 25 D8 1575PCT D10 22 D11 HI-1575PQI 21 - GND & HI-1575PQT D10 17 - D11 03/07 ...
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... Manchester II encoder and the decoder's receiver sampling logic. STATUS & MODE REGISTER The HI-1575 is configured by writing bits the Sta- tus & Mode (SAM) register. Refer to figure 2 for a com- plete description. SAM bits are read/write allowing the user to verify the chip's configuration at any time by reading the SAM ...
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... TX write. SAM bit 15 (SENDDATA) is high during this period and may be used as a flag to indicate when the HI-1575 is ready to accept the next data write for contiguous transmission. When transmitting a message of three or more words, the third and subsequent write operations should occur every 20 ...
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... RCVA is reset on reading RXA or if the HI-1575 detects a new word arriving on bus A. If the data words are contiguous, then RCVA will be high for about 3 us before the new word resets it. The data is still available in the RXA register and may be retreived any time up until the RCVA flag goes high again ...
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... P FIGURE 4. EXAMPLE RECEIVE OPERATION /CHB REG Register 0 Receiver A Data (RXA) 0 Receiver B Data (RXB) 1 Status & Mode Register (SAM) FIGURE 5. HI-1575 REGISTER MAP HOLT INTEGRATED CIRCUITS 5 TXDATA VALID SYNC SYNC 15 Read RXA or RXB, (MIL-STD-1553 Data word) SYNC SYNC ...
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... RENB performs the same function for the MIL-STD-1553 bus B. Note that because each receiver is internally connected to its transmitter, when a MIL-STD-1553 word is transmitted by the HI-1575 it will also be received on the same channel. This feature allows the terminal to self-monitor data transmitted to the MIL-STD-1553 data bus. 12.0 MHz ...
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... DATA SYNC ONE ZERO FIGURE 8. MIL-STD-1553 BUS RECEIVER TIMING MID-SYNC MID-PARITY DATA (Read RXA) (Read RXA) FIGURE 9. HI-1575 RECEIVER TIMING REG t RWH STRB t DWH D15:0 SYNC t CHWH CHA/CHB t RWWH R/W HOLT INTEGRATED CIRCUITS 7 BIT PERIOD ...
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... Supply Voltage -0 VDD....................................... 3.3V... ±5% -0 +3.6 V +/- 10 Vp-p Temperature Range +1.0 A Industrial Screening.........-40°C to +85°C Hi-Temp Screening........-55°C to +125°C 1.0 W 275°C for 10 sec. NOTE: 175°C ratings or outside recommended operating -65°C to +150°C conditions may cause permanent damage to the device. These are stress ratings only. Operation at the limits is not recommended ...
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... Data Read to Databus Valid Data Read to Databus Tri-state CHA/ CHB Read Setup Time CHA/ CHB Read Hold Time R/ W Read Setup Time R/ W Read Hold Time HI-1575 TRANSMITTER BUSA/B BUSA/B Point “A “ D HI-1575 SYMBOL TEST CONDITIONS tr 35 ohm load tf 35 ohm load t R1 ...
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... CHIP CARRIER PACKAGE The HI-1575PCI/T is packaged pin leadless plastic chip carrier (LPCC). This package has a metal heat sink pad on its bottom surface, which should be soldered to the printed circuit board for optimum thermal dissipation. The package heat sink is electrically isolated and may be soldered to any convenient power plane or ground plane. Redundant " ...
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... TO +85° -55°C TO +125° -55°C TO +125°C M PACKAGE DESCRIPTION PQ 32 PIN PLASTIC PQFP (32PTQS PIN CHIP SCALE PACKAGE (40PCS) (PCM not available) HOLT INTEGRATED CIRCUITS 11 JUNCTION TEMPERATURE 25° 85° 125° TBD°C TBD°C TBD° ...
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... See Detail A .063 max (1.60) BSC = “Basic Spacing between Centers” is theoretical true position dimension and has no tolerance. (JEDEC Standard 95) 40-PIN PLASTIC CHIP-SCALE PACKAGE 6.00 BSC Top View 6.00 BSC See Detail A 1.00 max BSC = “Basic Spacing between Centers” is theoretical true position dimension and has no tolerance ...