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IC, GDC25D801
Pin No.
Pin Name
1-16
DAT1-16
17
VSS
18-21
ADD1-4
22
VDD
23-27
ADD5-9
28
X2_MCK
29
VSS
30
MCK
31
VDD
32
RAS
33
UCAS
34
LCAS
35
WE
36
OE
37
SCAN_IN
38
TEST_SE
39-45
TEST_OUT12-6
46
T_SEL
47-52
TEST_OUT5-0
53-56
TEST_SEL0-3
57
TESTSERVO
58
E_SIN
59
E_CLK
60
E_ENB
61
E_DRB
62
VSS
63
SERVO CLK
64
E_SOUT
65
VDD
66-68
E_ST0-2
69
GPIO7
70
GPIO6
71
GPIO5
72
GPIO4
73
GPIO3
74
GPIO2
75
GPIO1
76
GPIO0
77
VSS
78
SENS
79
VDD
I/O
I/O
Bi-directional data to DRAM.
—
Digital GND.
O
Address output to DRAM.
I
Digital power supply.
O
Address output to DRAM.
I
Master clock from oscillator for 2x decoding.
—
Digital GND.
I
Master clock from oscillator.
—
Digital power supply.
O
Row address strobe to DRAM.
O
Column address upper byte control strobe to DRAM.
O
Column address lower byte control strobe to DRAM.
O
Write enable signal to DRAM.
O
Output enable signal to DRAM.
I
Scan data input (Not used.)
I
Test mode selection (low for normal) (Connected to GND.)
O
Test output (Not used.)
I
Test selection : 0 for normal.
O
Test output (Not used.)
I
Test mode output selection.
I
TEST PIN (NORMAL STATE = H ) (Connected to VDD.)
I
SERVO DSP PGM. DOWNLOADING DATA INPUT.
I
SERVO DSP PGM. DOWNLOADING CLK.
I
SERVO DSP DOWNLOADING ENABLE.
I
SERVO DSP PGM. DOWNLOADING DIRECTION.
—
Digital GND.
I
SERVO DSP CLOCK INPUT.
O
SERVO DSP PGM. DOWNLOADING DATA OUTPUT.
—
Digital power supply.
O
SERVO DSP DOWNLOADING STATUS 0-2.
I/O
SERVO DSP GENERAL I/O: FSON (FOCUS OK INVERTING).
I/O
SERVO DSP GENERAL I/O: PSEL.
I/O
SERVO DSP GENERAL I/O: ADADDR3 (Not used.)
I/O
SERVO DSP GENERAL I/O: FKRST (Not used.)
I/O
SERVO DSP GENERAL I/O: FKSET (Not used.)
I/O
SERVO DSP GENERAL I/O: FEL (Not used.)
I/O
SERVO DSP GENERAL I/O.
I/O
SERVO DSP GENERAL I/O: DSP_SENSE.
—
Digital GND.
O
SERVO DSP INTERNAL STATUS MONITOR.
—
Digital power supply.
68
Description
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