diff --git a/en/key_stone/k3/k3_docs/k3_ds.md b/en/key_stone/k3/k3_docs/k3_ds.md
index 933e1c9..987c8b6 100644
--- a/en/key_stone/k3/k3_docs/k3_ds.md
+++ b/en/key_stone/k3/k3_docs/k3_ds.md
@@ -12,6 +12,7 @@ Click to download [K3 Datasheet (PDF)](https://cdn-resource.spacemit.com/file/ch
 
 | Version | Date | Notes |
 | --- | --- | --- |
+| **V1.9** | 2026.09.24 | Updated Section 5.2.1 dual-voltage GPIO absolute maximum supply |
 | **V1.8** | 2026.08.25 | Added DPU0/DPU1 display interface support note in section 1.2 |
 | **V1.7** | 2026.08.19 | Added section 4.4 cross-references to pin assignment tables |
 | **V1.6** | 2026.07.15 | Updated video subsystem parameters |
@@ -2554,12 +2555,12 @@ The following table describes the recommended operating conditions.
 | | VCC18_GPIO4 | -0.3V | 1.98V |
 | | VCC18_GPIO5 | -0.3V | 1.98V |
 | | VCC18_PMIC | -0.3V | 1.98V |
-| | VCC1833_GPIO1 | -0.3V | 1.98V/3.63V |
-| | VCC1833_GPIO2 | -0.3V | 1.98V/3.63V |
-| | VCC1833_GPIO4 | -0.3V | 1.98V/3.63V |
-| | VCC1833_GPIO5 | -0.3V | 1.98V/3.63V |
-| | VCC1833_QSPI | -0.3V | 1.98V/3.63V |
-| | VCC1833_MMC1 | -0.3V | 1.98V/3.63V |
+| | VCC1833_GPIO1 | -0.3V | 1.98V/3.465V |
+| | VCC1833_GPIO2 | -0.3V | 1.98V/3.465V |
+| | VCC1833_GPIO4 | -0.3V | 1.98V/3.465V |
+| | VCC1833_GPIO5 | -0.3V | 1.98V/3.465V |
+| | VCC1833_QSPI | -0.3V | 1.98V/3.465V |
+| | VCC1833_MMC1 | -0.3V | 1.98V/3.465V |
 | **OSC** | AVDD08_OSC | -0.3V | 0.88V |
 | | AVDD18_OSC | -0.3V | 1.96V |
 | **PICE PHY0** | AVDD08_PCIeA | -0.3V | 0.88V |
diff --git a/en/key_stone/k3/k3_docs/k3_usermanual/00_preface.md b/en/key_stone/k3/k3_docs/k3_usermanual/00_preface.md
index 910e4a2..2be7080 100644
--- a/en/key_stone/k3/k3_docs/k3_usermanual/00_preface.md
+++ b/en/key_stone/k3/k3_docs/k3_usermanual/00_preface.md
@@ -8,6 +8,7 @@ sidebar_position: 1
 
 | Version | Date | Notes |
 | --- | --- | --- |
+| **V1.13** | 2026.09.24 | Updated Section 4.2.1 dual-voltage GPIO absolute maximum supply |
 | **V1.12** | 2026.09.08 | Updated the clock tree diagram in Chapter 17 |
 | **V1.11** | 2026.09.07 | Updated UART register base addresses in Section 14.6.4 |
 | **V1.10** | 2026.08.25 | Added DPU0/DPU1 display interface support note in Section 1.2 |
diff --git a/en/key_stone/k3/k3_docs/k3_usermanual/04_electrical.md b/en/key_stone/k3/k3_docs/k3_usermanual/04_electrical.md
index 2059d34..cfa5005 100644
--- a/en/key_stone/k3/k3_docs/k3_usermanual/04_electrical.md
+++ b/en/key_stone/k3/k3_docs/k3_usermanual/04_electrical.md
@@ -138,12 +138,12 @@ The following table describes the recommended operating conditions.
 |               | VCC18_GPIO4                  | -0.3V  | 1.98V             |
 |               | VCC18_GPIO5                  | -0.3V  | 1.98V             |
 |               | VCC18_PMIC                   | -0.3V  | 1.98V             |
-|               | VCC1833_GPIO1                | -0.3V  | 1.98V/3.63V       |
-|               | VCC1833_GPIO2                | -0.3V  | 1.98V/3.63V       |
-|               | VCC1833_GPIO4                | -0.3V  | 1.98V/3.63V       |
-|               | VCC1833_GPIO5                | -0.3V  | 1.98V/3.63V       |
-|               | VCC1833_QSPI                 | -0.3V  | 1.98V/3.63V       |
-|               | VCC1833_MMC1                 | -0.3V  | 1.98V/3.63V       |
+|               | VCC1833_GPIO1                | -0.3V  | 1.98V/3.465V      |
+|               | VCC1833_GPIO2                | -0.3V  | 1.98V/3.465V      |
+|               | VCC1833_GPIO4                | -0.3V  | 1.98V/3.465V      |
+|               | VCC1833_GPIO5                | -0.3V  | 1.98V/3.465V      |
+|               | VCC1833_QSPI                 | -0.3V  | 1.98V/3.465V      |
+|               | VCC1833_MMC1                 | -0.3V  | 1.98V/3.465V      |
 | **OSC**           | AVDD08_OSC                   | -0.3V  | 0.88V             |
 |               | AVDD18_OSC                   | -0.3V  | 1.96V             |
 | **PICE PHY0**     | AVDD08_PCIeA                 | -0.3V  | 0.88V             |
diff --git a/zh/key_stone/k3/k3_docs/k3_ds.md b/zh/key_stone/k3/k3_docs/k3_ds.md
index 04b5d69..19f62ec 100644
--- a/zh/key_stone/k3/k3_docs/k3_ds.md
+++ b/zh/key_stone/k3/k3_docs/k3_ds.md
@@ -12,6 +12,7 @@ sidebar_position: 2
 
 | 版本号 | 日期 | 修订说明 |
 | --- | --- | --- |
+| **V1.9** | 2026.09.24 | 更新 5.2.1 节双电压 GPIO 绝对最大供电电压 |
 | **V1.8** | 2026.08.25 | 第 1.2 节补充 DPU0/DPU1 显示接口支持说明 |
 | **V1.7** | 2026.08.19 | 新增第 4.4 节引脚分配表交叉引用 |
 | **V1.6** | 2026.07.15 | 更新视频子系统参数 |
@@ -2608,12 +2609,12 @@ K3 的 I/O 引脚支持 **功能 0 至 功能 7（Function 0–7）** 的信号
 | | VCC18_GPIO4 | -0.3V | 1.98V |
 | | VCC18_GPIO5 | -0.3V | 1.98V |
 | | VCC18_PMIC | -0.3V | 1.98V |
-| | VCC1833_GPIO1 | -0.3V | 1.98V/3.63V |
-| | VCC1833_GPIO2 | -0.3V | 1.98V/3.63V |
-| | VCC1833_GPIO4 | -0.3V | 1.98V/3.63V |
-| | VCC1833_GPIO5 | -0.3V | 1.98V/3.63V |
-| | VCC1833_QSPI | -0.3V | 1.98V/3.63V |
-| | VCC1833_MMC1 | -0.3V | 1.98V/3.63V |
+| | VCC1833_GPIO1 | -0.3V | 1.98V/3.465V |
+| | VCC1833_GPIO2 | -0.3V | 1.98V/3.465V |
+| | VCC1833_GPIO4 | -0.3V | 1.98V/3.465V |
+| | VCC1833_GPIO5 | -0.3V | 1.98V/3.465V |
+| | VCC1833_QSPI | -0.3V | 1.98V/3.465V |
+| | VCC1833_MMC1 | -0.3V | 1.98V/3.465V |
 | **OSC** | AVDD08_OSC | -0.3V | 0.88V |
 | | AVDD18_OSC | -0.3V | 1.96V |
 | **PICE PHY0** | AVDD08_PCIeA | -0.3V | 0.88V |