CY7C68013A, CY7C68014A
CY7C68015A, CY7C68016A
Document #: 38-08032 Rev. *L Page 21 of 62
4.1 CY7C68013A/15A Pin Descriptions
The FX2LP Pin Descriptions follows.[10]
Table 11. FX2LP Pin Descriptions
128
TQFP 100
TQFP 56
SSOP 56
QFN 56 VF-
BGA Name Type Default Description
10 9 10 3 2D AVCC Power N/A Analog VCC. Connect this pin to 3.3V power source.
This signal provides power to the analog section of the
chip.
17 16 14 7 1D AVCC Power N/A Analog VCC. Connect this pin to 3.3V power source.
This signal provides power to the analog section of the
chip.
13 12 13 6 2F AGND Ground N/A Analog Ground. Connect to ground with as short a path
as possible.
20 19 17 10 1F AGND Ground N/A Analog Ground. Connect to ground with as short a path
as possible.
19 18 16 9 1E DMINUS IO/Z Z USB D– Signal. Connect to the USB D– signal.
18 17 15 8 2E DPLUS IO/Z Z USB D+ Signal. Connect to the USB D+ signal.
94 A0 Output L 8051 Address Bus. This bus is driven at all times.
When the 8051 is addressing internal RAM it reflects
the internal address.
95 A1 Output L
96 A2 Output L
97 A3 Output L
117 A4 Output L
118 A5 Output L
119 A6 Output L
120 A7 Output L
126 A8 Output L
127 A9 Output L
128 A10 Output L
21 A11 Output L
22 A12 Output L
23 A13 Output L
24 A14 Output L
25 A15 Output L
59 D0 IO/Z Z 8051 Data Bus. This bidirectional bus is high
impedance when inactive, input for bus reads, and
output for bus writes. The data bus is used for external
8051 program and data memory. The data bus is active
only for external bus accesses, and is driven LOW in
suspend.
60 D1 IO/Z Z
61 D2 IO/Z Z
62 D3 IO/Z Z
63 D4 IO/Z Z
86 D5 IO/Z Z
87 D6 IO/Z Z
88 D7 IO/Z Z
39 PSEN# Output H Program Store Enable. This active-LOW signal
indicates an 8051 code fetch from external memory. It
is active for program memory fetches from
0x4000–0xFFFF when the EA pin is LOW, or from
0x0000–0xFFFF when the EA pin is HIGH.
Note
10.Unused inputs must not be left floating. Tie either HIGH or LOW as appropriate. Outputs should only be pulled up or down to ensure signals at power up and in
standby. Note also that no pins should be driven while the device is powered down.
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