
10
AT/TSC8x251G2D
4135F–8051–11/06
Note:
The description of A15:8/P2.7:0 and AD7:0/P0.7:0 are for the Non-Page mode chip con-
figuration. If the chip is configured in Page mode operation, port 0 carries the lower
address bits (A7:0) while port 2 carries the upper address bits (A15:8) and the data
(D7:0).
XTAL2
O
Output of the on-chip inverting oscillator amplifier
To use the internal oscillator, a crystal/resonator circuit is connected to this
pin. If an external oscillator is used, leave XTAL2 unconnected.
–
Table 2.
Product Name Signal Description (Continued)
Signal
Name
Type
Description
Alternate
Function