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HT8665 Datasheet(PDF) 3 Page - Holtek Semiconductor Inc

Part # HT8665
Description  Talking Back with Echo
PDF  13 Pages
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT8665 Datasheet(HTML) 3 Page - Holtek Semiconductor Inc

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Pad Coordinates
Unit:
µm
Pad No.
X
Y
Pad No.
X
Y
1
–1447.00
977.75
18
1447.00
–452.75
2
–1434.00
648.25
19
1447.00
–189.75
3
–1447.00
354.75
20
1447.00
75.25
4
–1447.00
99.25
21
1442.00
434.25
5
–1429.50
–178.75
22
1447.00
718.75
6
–1447.00 –1004.75
23
1447.00
999.75
7
–1450.00 –1300.75
24
1346.00
1300.75
8
–1106.50 –1300.75
25
1020.00
1300.75
9
–813.00
–1300.75
26
741.00
1300.75
10
–31.00
–1300.75
27
460.00
1300.75
11
296.00
–1300.75
28
181.00
1300.75
12
626.00
–1300.75
29
–100.00
1300.75
13
881.50
–1300.75
30
–393.00
1300.75
14
1143.50
–1300.75
31
–674.00
1300.75
15
1447.00
–1305.75
32
–983.50
1300.75
16
1447.00
–965.25
33
–1340.00
1300.75
17
1447.00
–717.75
Pin Description
Pin No.
Pin Name
I/O
Internal
Connection
Description
1
A0
O
CMOS
DRAM address output
2
RASB
O
CMOS
DRAM row address strobe
3
WRB
O
CMOS
DRAM write enable
4
DATA
I/O
CMOS
DRAM data input/output
5
A8
O
CMOS
DRAM address output
6
NC
—
—
No connection
7
CASB
O
CMOS
DRAM column address strobe
8
VDD
I
—
Positive power supply
9
MOTOR
O
CMOS
Motor drive output (active high)
10
LEDB
O
NMOS
Open Drain
LED indicator:
Idle: LED is turned on;
Record: LED flashes;
Play: LED is turned off.
11
IOUT
O
PMOS
Open Drain
Current type audio output for an external transistor
HT8665
3
21st Dec ’95



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