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Datasheet: IA6850-PDW24C (InnovASIC, Inc.)

Asynchronous Communications Interface Adapter (ACIA)

 

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InnovASIC, Inc.
Page 1 of 4
IA6850
Advanced Information
Sheet
Asynchronous Communications Interface Adapter (ACIA)
Copyright
1999, InnovASIC Inc.
Customer Specific IC Solutions
FEATURES
Form, Fit, and Function Compatible with the Motorola
MC6850
Packaging option available: 24 Pin Plastic DIP
Programmable Word Length, Stop Bits, and Parity
Error Detection
Divide by 1, 16, or 64 operation
TBD Equivalent gates.
The IA6850 uses innov
ASIC
's innovative new f
3
Program to provide industry with parts that other
vendors have declared obsolete. By specifying parts through this program a customer is assured of
never having a component become obsolete again. This advanced information sheet assumes the
original part has been designed in, and so provides a summary of capabilities only. For new designs
contact innov
ASIC
for more detailed information.
Motorola is a copyright trademark of Motorola, Inc.
Package Pinout
(6)
(1)
(2)
(3)
(4)
(5)
(7)
(8)
(9)
CS2_n
(10)
CS1
(11)
RS
(12)
VCC
24 Pin DIP
IA6850
D6
D7
E
R/W_n
(24)
(23)
(22)
(21)
(20)
(19)
(18)
(17)
(16)
(15)
(14)
(13)
D4
D5
D2
D3
D0
D1
CTS_n
DCD_n
TXDATA
VSS
RXDATA
RXCLK
TXCLK
RTS_n
IRQ_n
CS0
Page 2 of 4
IA6850
Advanced Information
Sheet
Asynchronous Communications Interface Adapter (ACIA)
Copyright
1999, InnovASIC Inc.
Customer Specific IC Solutions
The IA6850 is an ACIA megafunction used to interface a microprocessor to a serial communications
channel, and is functionally equivalent to the Motorola MC6850. This function receives and transmits
data in a variety of configurations including 7 or 8 bit data words, odd, even, or nor parity, and 1 or 2
stop bits.
A block diagram is shown in Figure 1.
Functional Block Diagram
Figure 1
CHIP
SELECT
AND
READ/WRITE
CONTROL
CLOCK
GEN
TRANSMIT
DATA
REGISTER
STATUS
REGISTER
CONTROL
REGISTER
RECEIVE
DATA
REGISTER
PARITY
GEN
TRANSMIT
SHIFT
REGISTER
TRANSMIT
CONTROL
INTERRUPT
LOGIC
RECEIVE
CONTROL
PARITY
CHECK
CLOCK
GEN
SYNC
LOGIC
RECEIVE
SHIFT
REGISTER
R/W_n
CS0
CS1
CS2_n
RS
E
RXCLK
DATA
BUS
BUFFERS
D0
D1
D2
D3
D4
D5
D6
D7
TXDATA
CTS_n
IRQ_n
DCD_n
RTS_n
RXDATA
TXCLK
Page 3 of 4
IA6850
Advanced Information
Sheet
Asynchronous Communications Interface Adapter (ACIA)
Copyright
1999, InnovASIC Inc.
Customer Specific IC Solutions
Qualification Levels
Table 1
Part Number
Environmental/ Qual Level
IA6850-PDW24C
Commercial
IA6850-PDW24I
Industrial
The following diagram depicts the innov
ASIC
Product Identification Number.
IAXXXXX-PPPPNNNT/SP
Special Processing:
S = Space
Q = MIL-STD-883
Temperature:
C = Commercial
I = Industrial
M = Military
Number of Leads
Package Type:
Per Package Designator Table
IC Base Number
innov
ASIC
Designator
Page 4 of 4
IA6850
Advanced Information
Sheet
Asynchronous Communications Interface Adapter (ACIA)
Copyright
1999, InnovASIC Inc.
Customer Specific IC Solutions
Package Designator Table
Package Type
innov
ASIC
Designator
Ceramic side brazed Dual In-line
CDB
Cerdip with window
CDW
Ceramic leaded chip carrier
CLC
Cerdip without window
CD
Ceramic leadless chip carrier
CLL
PLCC
PLC
Plastic DIP standard (300 mil)
PD
Plastic DIP standard (600 mil)
PDW
Plastic metric quad flat pack
PQF
Plastic thin quad flat pack
PTQ
Skinny Cerdip
CDS
Small outline plastic gull-wing(150 mil body)
PSO
Small outline medium plastic gull-wing (207 mil body)
PSM
Small outline narrow plastic gull wing (150 mil body)
PSN
Small outline wide plastic gull wing (300 mil body)
PSW
Skinny Plastic Dip
PDS
Shrink small outline plastic (5.3mm .208 body)
PS
Thin shrink small outline plastic
PTS
Small outline large plastic gull wing (330 mil body)
PSL
Thin small outline plastic gull-wing (8 x 20mm) [TSOP]
PST
PGA
CPGA
BGA
CBGA
Contact innov
ASIC
for other package and processing options.
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