31 ELECTRICAL CHARACTERISTICS
S1C33L26 TECHNICAL MANUAL
Seiko Epson Corporation
31-5
*
2) • The program is executed in an external SDRAM (K4S561632E).
• The peripheral module clocks except OSC1, BCLK, and SDCLK are all disabled (off). (CMU_CLKCTL register = 0x18)
• The SSCG circuit is disabled (off).
• The GPIO ports are all configured to input with pulled up (no floating input).
• The current consumption is measured by executing a test program that consists of 51% load instructions, 21% arithmetic opera-
tion instructions, 10% branch instructions and 18% ext instructions.
*
3) The PLL circuit is disabled (off).
*
4) • The program is executed in IRAM in Area 0.
• The OSC3 and peripheral module clocks are all disabled (off).
• The SSCG circuit is disabled (off).
• A GPIO port is used as the SDCLK port.
• The GPIO ports are all configured to input with pulled up (no floating input).
• The current consumption is measured by executing a test program that consists of 51% load instructions, 21% arithmetic opera-
tion instructions, 10% branch instructions and 18% ext instructions.
A/D Converter Characteristics
31.5
Unless otherwise specified: LV
DD
= 1.65 to 1.95V, HV
DD
= AV
DD
= 2.7 to 3.6V, V
SS
= 0V, Ta = -40 to 85
°
C, ADST[2:0] = 0x7
Item
Symbol
Condition
Min.
Typ.
Max.
Unit
Resolution
–
–
10
–
bits
Conversion time
*
1
–
10
–
1250
µs
Zero scale error
E
ZS
-2
–
2
LSB
Full scale error
E
FS
-2
–
2
LSB
Integral linearity error
E
L
-3
–
3
LSB
Differential linearity error
E
D
-3
–
3
LSB
Permissible signal source impedance
–
–
–
5
k
W
Analog input capacitance
–
–
–
45
pF
*
1) Condition for Min. value: A/D clock = 2MHz. Condition for Max. value: A/D clock = 16kHz.
A/D conversion error
V[001]h = Ideal voltage at zero-scale point (=0.5LSB)
V'[001]h = Actual voltage at zero-scale point
V[3FF]h = Ideal voltage at full-scale point (=1022.5LSB)
V'[3FF]h = Actual voltage at full-scale point
1LSB =
1LSB' =
AV
DD
- V
SS
2
10
- 1
V'[3FF]h - V'[001]h
2
10
- 2
V[001]h
(=0.5LSB)
V'[001]h
004
003
002
001
000
V
SS
Zero scale error
Zero scale error E
ZS
=
[LSB]
(V'[001]h - 0.5LSB') - (V[001]h - 0.5LSB)
1LSB
Digital output (hex)
Analog input
Ideal conversion characteristic
Actual conversion characteristic
V[3FF]h (=1022.5LSB)
V'[3FF]h
3FF
3FE
3FD
3FC
3FB
AV
DD
Full scale error
Full scale error E
FS
=
[LSB]
(V'[3FF]h + 0.5LSB') - (V[3FF]h + 0.5LSB)
1LSB
Digital output (hex)
Analog input
Ideal conversion characteristic
Actual conversion characteristic