Toshiba 29VH27D, Service Manual

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• Tools for greatly simplified software development
• 24-Kbyte on-chip reconfigurable DRAM
• 44160-bit character ROM
• One external crystal for all standards
14.4.2.Pin Definition and functions
Pin No. P-LCC-68-1 Symbol Function
1 INTQ Interrupt request output to ext. controller
2 CLK-IO System clock input/output
3 TCSQ/FLD Composite sync output/ field output
4 VS/VCS Vertical sync input/output
5 HS Horizontal sync input/output
6 XOUT 20.5-MHz crystal oscillator output
7 XIN 20.5-MHz crystal oscillator input
8 GPO General purpose output
9 TM Test pin, leave open or connect VSS
10 CVBS CVBS-video signal input
11 V
DD1
+ 5 V digital supply
12 V
DDA
+ 5 V analog supply
13 V
SSA1
Analog ground
14 N.C. Not connected
15 N.C. Not connected
16 V DD2 + 5 V digital supply
17 RES Chip reset
18 N.C. Not connected
19 N.C. Not connected
20 N.C. Not connected
21 V
DD3
+ 5 V digital supply
22 N.C. Not connected
23 V
REF
+ 3 V reference voltage input
24 N.C. Not connected
25 V
DD4
+ 5 V digital supply
26 A8 External DRAM-address
27 A7 External DRAM-address
28 A6 External DRAM-address
29 A5 External DRAM-address
30 A4 External DRAM-address
31 A3 External DRAM-address
32 A2 External DRAM-address
33 A1 External DRAM-address
34 A0 External DRAM-address
35 A9 External DRAM-address
36 A10 External DRAM-address
37 A11 External DRAM-address
38 RASQ Row address strobe (DRAM)
39 WEQ Write enable (DRAM)
40 D1 External DRAM-data
41 D0 External DRAM-data
42 D2 External DRAM-data
43 D3 External DRAM-data
44 V
SS4
0 V digital supply
45 CASQ Column address strobe
46 N.C. Not connected
47 N.C. Not connected
48 N.C. Not connected
49 V
SS3
0 V digital supply
50 N.C. Not connected
51 N.C. Not connected
52 N.C. Not connected
53 N.C. Not connected
54 N.C. Not connected
55 V
SS2
0 V digital supply
56 V
BB
Substrate bias voltage N.C.* (depends on version)
57 N.C. Not connected