TC826CBU Просмотр технического описания (PDF) - TelCom Semiconductor Inc => Microchip
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TC826CBU Datasheet PDF : 12 Pages
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A/D CONVERTER WITH
BAR GRAPH DISPLAY OUTPUT
TC826
LCD DISPLAYS
Most end products will use a custom LCD display for
final production. Custom LCD displays are low cost and
available from all manufacturers. The TC826 interfaces to
non-multiplexed LCD displays. A backplane driver is in-
cluded on chip.
To speed initial evaluation and prototype work a stan-
dard TC826 LCD display is available from Varitronix.
Varitronix Ltd. LCDs
4/F Liven House
61-63 King Yip Street
Kwun Tong, Kowloon
Hong Kong
Tel: (852)2389-4317
Fax: (852)2343-9555
USA Office:
VL Electronics / Varitronix
3250 Wilshire Blvd., Suite 901
Los Angeles, CA 90010
Tel: (213) 738-8700
Fax: (213) 738-5340
• Part No.: VBG-413-DP
Other standard LCD displays suitable for development
work are available in both linear and circular formats. One
manufacturer is:
UCE Inc.
24 Fitch Street
Norwalk, CT 06855
Tel: 203/838-7509
• Part No. 5040: 50 segment circular display with
3 digit numeric scale.
• Part No. 5020: 50 segment linear display.
LCD BACKPLANE DRIVER (PIN 15)
Additional drive electronics is not required to interface
the TC826 to an LCD display. The TC826 has an on-chip
backplane generator and driver. The backplane frequency
is:
FBP = FOSC/256
Figure 11 gives typical backplane driver rise/fall time
versus backplane capacitance.
10
9 TA = 25°C
8 VS = 9V
7
6
5
4
3
2
1
0 1 2 3 4 5 6 7 8 0 10
BACKPLANE CAPACITANCE (X 100pf)
Figure 11. Backplane Driver Rise/Fall Time vs. Capacitance
FLAT PACKAGE SOCKET
Sockets suitable for prototype work are available. A
USA source is:
Nepenthe Distribution
2471 East Bayshore, Suite 520
Palo Alto, CA 94303
Tel: 415/856-9332
Telex: 910/373-2060
‘BQ’ Socket Part No.: IC51-064-042 BQ
3-182
TELCOM SEMICONDUCTOR, INC.
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