XE8806A SEMTECH [Semtech Corporation], XE8806A Datasheet - Page 9

• Manufacturer Part Number: XE8806A
• Description: Ultra Low-Power Low-Voltage
• Manufacturer: SEMTECH [Semtech Corporation]

1.2.5 Bare die XE8807A
The circuit is also available in bare die for chip on board assembly. All VBAT pins and all VSS pins should be
connected together. The substrate of the circuit is connected to VSS.
1.3 Pin assignment
The table below gives a short description of the different pin assignments.
Pin
VBAT
VSS
VREG
VPP
NRESET
TEST
XIN/XOUT
PA(7:0)
PB(7:0)
PD(7:0)
© Semtech 2006
Assignment
Positive power supply
Negative power supply
Connection for the mandatory external capacitor of the voltage regulator
High voltage supply for flash memory programming (NC in ROM versions)
Sets the pin to flash programming mode
Parallel input port A pins
Parallel I/O port B pins
Parallel I/O port D pins
Resets the circuit when the voltage is low
Quartz crystal connections, also used for flash memory programming
(123,2970)
(123,2345)
(123,2113)
(123,1386)
(123,1072)
(123, 310)
(123, 3236)
(123, 2658)
(123, 835)
(123, 545)
VBAT
VREG
PD(5)
PA(5)
PA(6)
PD(6)
PB(6)
PB(7)
TEST
Figure 1-6. Die dimension and pin location of the XE8807A
VSS
4050µm
Table 1-1. Pin assignment
1-7
XEMICS
XE8806A/XE8807A
PB(1)
PB(0)
PD(2)
PA(2)
PA(1)
PD(1)
NRESET (3787, 913)
VSS
VPP
(3787,3078)
(3787,2714)
(3787,2354)
(3787,2082)
(3787,1530)
(3787,1178)
(3787, 588)
(3787, 340)
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