Data Adapter. HD6852 Datasheet

HD6852 Adapter. Datasheet pdf. Equivalent

Part HD6852
Description Synchronous Serial Data Adapter
Feature HD6852, HD68A52 SSDA (Synchronous Serial Data Adapter) The HD6852 Synchronous Serial Data Adapter .
Manufacture Hitachi
Datasheet
Download HD6852 Datasheet




HD6852
HD6852, HD68A52
SSDA (Synchronous Serial Data Adapter)
The HD6852 Synchronous Serial Data Adapter provides a
bi·directional serial interface for synchronous data information
interchange. It contains interface logic for simultaneously
transmitting and receiving standard synchronous communica·
tions characters in bus organized systems such as the
HMCS6800 Microprocessor systems.
The bus interface of the HD6852 includes select, enable,
read/write, interrupt, and bus interface logic to allow data
transfer over an 8-bit bi·directional data bus. The parallel data
of the bus system is serially transmitted and received by the
synchronous data interface with synchronization, fill charar-ter
insertion/deletion, and error checking. The functional con·
fJgllration of the SSDA is programmed via the data bus during
system initialization.
Programmable control registers provide control for variable
word length, transmit control, receive control, synchronization
control and interrupt cO!1troL Status, timing and control lines
provide peripheral or modem control.
1»picaI applications include data communications terminals,
floppy disk controllers, cassette or cartridge tape controllers and
numerical control systems.
HD6852P, HD68A52P
(DP-24)
• PIN ARRANGEMENT
• fEATURES
• Programmable Interrupts from Transmitter, Receiver,
and Error Detection Logic
• Character Synchronization on One or Two Sync Codes
• External Synchronization Available for Parallel·Serial
Operation
• Programmable Sync Code Register
• Up to 1Mkbps Transmitter
• Peripheral/Modem Control Functions
• Three Bytes of FIFO Buffering on Both Transmit and
Receive
• 6, 7, or B Bit Data Transmission
• Optional Even and Odd Parity
• Parity, Overrun, and Underflow Status
• Compatible with MC6B52 and MC68A52
(Top View)
C$ 10
RS 11
D. "
0, 21
0 1 20
D. 19
D. 18
0, 17
O. 16
D. IS
fiiS 9
8 TUF
23 0C0
7 iRa
2 RlI Datil
3 Rx eLK
5 SM/6'fR
@HITACHI
Hitachi Amenca Ltd. • 2210 O'Toole Avenue • San Jose, CA 95131 • (408) 435-8300
193



HD6852
HD6852,HD68A52----------------------------------------------------------
• ABSOLUTE MAXIMUM RATINGS
Item
Supply Voltage
Input Voltage
Operating Temperature
Storage Temperature
.Symbol
Vee
V'n *
Topr
TItg
Value
-0.3-+7.0
-0.3-+7.0
- 20-+75
-55 - +150
Unit
V
V
·C
·C
• With respect to vss ISYSTEM GNO)
(NOTE) Permanent LSI damage may occur if maximum ratings are exceeded. Normal operation should be under recommended operating
conditions. If these conditions are exceeded, it could affect reliability of LSI.
• RECOMMENDED OPERATING CONDITIONS
Item Symbol min typ max Unit
Supply Voltage
Input Voltage
Operating Temperature
Vee * 4.75 5.0 5.25 V
V1L *
-0.3
-
0.8 V
V1H *
2.0 -
Vee V
Topr
- 20 25
75 ·C
• With respect to Vss (SYSTEM GNO)
• ELECTRICAL CHARACTERISTICS
• DC CHARACTERISTICS (Vee = 5V ± 5%, Vss = OV, Ta = -20-+75'C, unless otherwise noted.)
Item
Input "High" Voltage
Input "Low" Voltage
All Input
All Input
Symbol
V,H
V,L
Test Condition
min typo
2.0 -
-0.3 -
Output "High" Voltage
Output "Low" Voltage
Do-D7
Tx Data
DTR, TUF
All Output
TxCLK, RxCLK,
VOH
IOH - -205/.LA,
PW EH , PWEL~ 25/.Ls
2.4
IOH - -l00/.LA,
VOH 2.4
PWEH , PWELS:25/.LS
VOL
IOL - 1.6 mA,
PWEH , PWEL~ 25/.Ls
-
-
-
-
Input Leakage Current
Rx Data, E,
RES, RS, R/W
lin
Vin =0-5.25V
-2.5 -
CS, DCD, CTS
Three·State Input Current
Do- D 7
(Off State)
ITS1 Vin - 0.4 - 2.4V, -10 -
Vee = 5.25V
Output Leakage Current
(Off State)
Power Dissipation
Input Capacitance
IRO
Do- D7
RxData, RxCLK,
TxCLK, RES,
CS, RS, R/W, E,
,
ILOH
Po
VOH = 2.4V
Vi" = OV,
Ta = 25'C,
Cin f = 1 MHz
--
- 300
--
--
Output Capacitance
DCD,CTS
TxData, DTR, TUF,
IRO
Cout
Vi" = OV, Ta=25'C
f = 1 MHz
-
-
-
-
• Ta = 25" C, Vee = 5V
max
-
0.8
-
-
0.4
2.5
10
10
525
12.5
7.5
10
5.0
Unit
V
V
V
V
V
/.LA
/.LA
/.LA
mW
pr
pF
~HITACHI
194
Hitachi America Ltd. • 2210 O'Toole Avenue • San Jose, CA 95131 • (408) 435·8300







@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)