DSP56F826BU80 Freescale Semiconductor, DSP56F826BU80 Datasheet - Page 32

• Manufacturer Part Number: DSP56F826BU80
• Description: IC DSP 80MHZ 31.5K FLASH 100LQFP
• Manufacturer: Freescale Semiconductor
• Series: 56F8xxr

Specifications of DSP56F826BU80

• Core Processor: 56800
• Core Size: 16-Bit
• Speed: 80MHz
• Connectivity: EBI/EMI, SCI, SPI, SSI
• Peripherals: POR, WDT
• Number Of I /o: 46
• Program Memory Size: 67KB (33.5K x 16)
• Program Memory Type: FLASH
• Ram Size: 4.5K x 16
• Voltage - Supply (vcc/vdd): 2.25 V ~ 2.75 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

32
Operating Conditions:
Input Data Hold to RD Deasserted
RD Assertion Width
Wait states = 0
Wait states > 0
Address Valid to Input Data Valid
Wait states = 0
Wait states > 0
Address Valid to RD Asserted
RD Asserted to Input Data Valid
Wait states = 0
Wait states > 0
WR Deasserted to RD Asserted
RD Deasserted to RD Asserted
WR Deasserted to WR Asserted
RD Deasserted to WR Asserted
1. Timing is both wait state- and frequency-dependent. In the formulas listed, WS = the number of wait states and
T = Clock Period. For 80MHz operation, T = 12.5ns.
2. Parameters listed are guaranteed by design.
To calculate the required access time for an external memory for any frequency < 80Mhz, use this formula:
Top = Clock period @ desired operating frequency
WS = Number of wait states
Memory Access Time = (Top*WS) + (Top- 11.5)
Table 3-10 External Bus Asynchronous Timing
Characteristic
V
SSIO
= V
SS
= V
SSA
= 0V, V
56F826 Technical Data, Rev. 14
DDA
= V
DDIO
= 3.0–3.6V, V
Symbol
t
t
t
t
t
WRWR
WRRD
RDWR
t
t
RDRD
ARDA
DRD
RDD
t
t
RD
AD
DD
= 2.25–2.75V, T
(T*WS) + 19
14.1
12.8
Min
-4.4
6.8
19
—
—
—
—
0
0
1, 2
A
= –40° to +85°C, C
(Continued)
(T*WS) + 2.4
(T*WS) + 1
Max
2.4
—
—
—
—
—
—
—
—
Freescale Semiconductor
1
L
≤ 50pF, f
op
Unit
= 80MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns